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Did you know what we add to our garden affects the ocean?

It’s officially day 4 of the “We affect what goes in our watershed” week (see posts on marine debris, oil, and pharmaceuticals). This time it’s all about fertilizers. Researchers whom published in the February 2011 edition of the journal Environmental Research Letters pointed out the human use of phosphorous, primarily in the industrialized world, is causing the widespread eutrophication of fresh surface water. I don’t know about you, but I’ve never noticed that I dump phosphorus down any drains or waterways. But, did you know that phosphorous and other harmful nutrients are in the fertilizers we use to keep lawns fresh and sprightly each spring (right around the corner!)? While these nutrients may nourish our gardens they also cause the fast growth of algae (i.e., algal blooms). The algae then feed bacteria, which deplete the waterways of oxygen ensuring that many animals and plants do not survive. Also, the fast growth of the algae will block out essential light needed for photosynthesis. This epidemic of eutrophication can be a very costly and damaging to our rivers, streams, lakes, and even ocean. Below is an image from the National Centers for Coastal Ocean Science (a division of NOAA) comparing places that have a high (right) and low (left) frequency of eutrophication.
healthy-eutro-diagram_coastalscience.noaa.gov
Want a way to ensure you don’t add to the eutrophication? I like the green manure method from Down to Earth for my garden, but McGreary Organics has a good one for lawns as well. I think I’ll be depressing just one more day and ask once again, besides fertilizers, marine debris, petroleum, and pharmaceuticals, what are some other ways fish or aquatic life are affected by what we put in our waterways?

10 brief facts on bioluminescence

We all get excited thinking about bioluminescence in nature. Ironically, that excitement is only one of the reasons animals glow like an elf in Middle Earth. Here are some ‘basics on bioluminescence’ you can share with your friends and family the next time you all ogle a firefly and wonder ‘why?’.

New benthic species discovered off the coast of California

You might think all the animals that live in the ocean are floating throughout the sea, but there are entire communities of benthic animals and plants that live in a two-dimensional way just like we do on land. ‘Benthos’ are animals and plants that live in or on the ocean floor. These benthic animals live by one of three strategies: 1) attachment to a firm surface, 2) free movement on the ocean floor, 3) burrowing in the sediment. Sometimes a species may live by more than one of these strategies.

Recently, a newly described benthic animal was discovered in the deep-sea off the coast of California. Here is a video produced by the Monterrey Bay Aquarium and Research Institute of the carnivorous sponge, known as the harp sponge (Chondrocladia lyra).  It got the common name – harp – because the sponge has evolved up to 6 veins with structures fanning out from the spine to maximize ocean currents. The elaborate ribs have velcro-like hooks used to ensnare tiny prey and are also useful for distributing eggs. These animals use a rhizoid to anchor itself to the sea floor.

Are manatees and elephants related?

It might be very difficult to imagine, but it’s true. Manatees (also known as ‘sea cows’) share a common ancestor with elephants which might come as a surprise if you thought manatees shared a common ancestor with other marine mammals such as dolphins, whales, or sea lions. Here are 10 facts that link manatees and elephants as long-lost relatives.

1. Scientifically, manatees and elephants are classified as subungulates. Other mammals in the Subungulata superorder are hyraxes and aardvarks.
2. Manatees and elephants have an uncommon-shaped heart that is spherical. To compare, most mammals have a single-pointed tip at the base (i.e., “heart”—shaped).
3. The West Indian and West African manatee have three or four fingernail-like structures on the tip of their flippers, just like that of the toenails on the feet of elephants.
4. Manatees and elephants both have a thick, gray skin with very sparse hair.
5. Manatees and elephants have molars which move toward the front of the mouth, eventually break off, and are restored by those at the rear. Elephants have a limited number while manatees are never-ending.
6. Manatees have two incisors that bear a resemblance to elephant tusks.
7. Manatees use their large, flexible muscular lips to break apart vegetation in the water and skillfully steer food to their mouths. This is very similar to the action of the elephant eating with his trunk.
8. Manatees and elephants are herbivores. Manatees tend to feast on sea grass and freshwater plants and consume up to 100-150 pounds a day. Elephants tend to feast on small plants, bushes, fruit, twigs, tree bark, and roots and consume up to 330-375 pounds a day.
9. Male manatees and elephants are known as bulls. Female manatees and elephants are known as cows. Young manatees and elephants are known as calves.
10. Manatees and elephants are both endangered. Their numbers have dropped due in a large part to human activities.

naples-wildlife-manatee

elephant-eating-greenery-in-Addo-Park-Eastern-Cape-South-Africa-3-WL

Manatee image (c) cruisenaplesflorida.com, elephant image (c) gallery.hd.org

Here is a fantastic teaching resource from the University of Florida Sea Grant extension I uncovered while pulling this post together.

10 tips for a successful beachcombing trip

Pick up that clump! You never know what you'll find.

Pick up that clump! You never know what you’ll find.

It’s my favorite time of year. This is the best time to explore the beach. It’s still sunny and warm, there are frequent storms (you’ll see why that matters later), and there are few people on the beach. For another six weeks along the mid-Atlantic (before it gets too cold), I encourage you to spend some time getting to know your local shoreline. Here are 10 tips for a successful beachcombing trip.

10. What to bring. Here is a list of some items you may want to remember so you’re prepared for any situation.

  • Often the beach is considerably cooler than inland so bring layers. You may want to wear hiking pants and bring a zippered sweatshirt so you’re equipped with lots of pockets for some other items that might be essential.
  • Make sure to have some appropriate soles. Sure it’s our instinct to be barefoot, however if you want to venture out along the jetties or rocks make sure you have some old sneakers or those water shoes with some decent grip (After all, you don’t want to ruin your adventure with a puncture to some sharp object). Also, the water might be a little cooler than you’d prefer and some good foot cover will allow you to wade into a tide pool, since pools are really popular now a days, you can find more swimming pools for sale here for your home as well.
  • Make sure to have a watch.
  • Even during the off-season the sun is shining and is strong enough to give you a burn. Make sure to bring along a hat, sunglasses, and sunscreen.
  • It’s always a good idea to bring a shovel, grabber sick, or even a metal detector so you can gently investigate inside crevices and below the sand.
  • You are going to want to cherish the moments so find that camera and try to make a neck strap so it’s always handy. You can take pictures of items you find and want to learn about later. You’ll also want to catalog those smiles in the sun.
  • Take along a small (i.e., not heavy) identification book so you can learn more about what you find while on your outing.

9. Be hands free. One more item that you’re going to love me for suggesting is a backpack. This way you can investigate a little bit further from your base and your items are quickly at your disposal.

8. Leave important items behind. Don’t ruin the day by losing a credit card or your phone. If you’re active and in the moment you might lose something and it’s going to be difficult to retrace your steps. I won’t say “I told you so”. On the same note it’s important to leave animals, plants, rocks, and seashells where you find them. If you want to have a little bit of the beach in your home check out these great books by Josie Iselin.

7. When to go. To get the optimum experience for beachcombing you’ll want to check on when low tide is at your beach spot. The best time to go beachcombing is 2-3 hours prior to low tide or an hour or so after (This is why a watch is important, you don’t want to get stuck on  shoal during high tide). Many intertidal animals live under the water in the sand during high tide, but come out to play (and seek out food) during low tide. If you can time it so you get to check out the beach after a big storm you’ll be in for a real treat. The strong wind and wave action of storms will wash up a fossils, bones, seaweed, and lot of other interesting treasures from the ocean floor. Also, keep in mind that dawn and dusk are difficult times to identify beach treasures. Although this is a great time to spot birds as many fish tend to come up to the surface at these times.

6. Where to go. My favorite spot to beachcomb is the Stone Harbor Point in NJ, but it’s not always easy for me to get there these days. I like to remind myself from time to time that I don’t need an ocean to beachcomb. There is a lake and creek in my neighborhood and these spots are a great place to spend the afternoon. After all, these waterways eventually lead to the ocean.  No matter where I decide to spend some time beachcombing I always make sure to note the general water quality.

5. Be careful. This is just a reminder to not tamper with obviously dangerous items. Fish hooks, metal canisters, and needles often wash up on the beach. While I am going to also suggest doing your part and picking up marine debris it’s also a good idea to err on the side of caution and when poking around. Also, some rocks look very steady but it’s important to be aware of your surroundings. If you are feeling like having an adventurous day it’s might be a good idea to make sure you have someone else with you. One last thing about being careful,even though the dunes might look like an interesting place to check out – it’s important to know that those grasses are incredibly brittle and can crack easily. It’s also against the law to walk on the dunes. The dunes are an important part of the beach ecosystem as they protect our homes from storm surge.

4. Leave it be. Each rock that you turn over is part of an ecosystem. A rock might be an essential part of an animal’s home as it helps pool water during high tide. Rocks also protect them from predator as well as the sun. It’s important to always remember to not take animals out of their natural setting – especially if you see them in a tide pool. Many animals are naturally attached to rocks for survival and you could be risking their survival.

3. Play. You might not want to go home, but you also might be in the company of some people that just don’t have a very long attention span. Even more frustrating is repeating the phrase, “No, you cannot go in the water today” over and over again. Build a sandcastle. Surf fish with your best saltwater spinning reel under 100. Look to the horizon for dolphins or porpoises. Make a sand angel. Look up to the sky for cloud animals. Check out my ebook for other beachcombing adventures.

2. Bag it and track it. It’s always nice to be prepared to be able to do your part. I prefer to take along a hefty canvas bag that can fit in a backpack so I can tote marine debris back to a garbage can. You might even try to acquire one of these nifty bags with holes for sand to percolate through from the Green Bag Lady. When you head back to the car you can even do some citizen science and log your marine debris on the Marine Debris Tracker.

1. Don’t expect too much. It’s important to remember to relax and respect the area you are exploring. All of the ideas above are simply suggestions and ideas to ensure you get the most out of  a beachcombing adventure. Please don’t hesitate to share your favorite stories, spots, and other ideas for a great day. You can comment below of email me at info@beachchairscientist.com.

10 Beachcombing Adventures

These days while on the beach I am no longer relaxing in my beach chair as my toes melt into the sand, I’m happily chasing after a small tot who is inquisitive about everything. So I decided it was time to go back into my vault of ‘teachable moments’ and catalog some activity gems and random factoids that I used as ‘fillers’ to engage – not only children, but also many adults – while on beachcombing walks,  snorkeling excursions, or summer camp lessons, and if you like to go to the beach a lot, using good options like the turkish beach towel amazon that are a great accessory for people going to the beach.

I hope you find these 10 Beachcombing Adventures as mere forms of mild edutainment to help you and your children to gain more awareness about your surroundings. Each section is also peppered with some facts in case your little explorer has a case of the curiosities. Additionally, I hope you continue to engage in exploration and you and your family are inspired to enact conservation tenets at home and maybe even share those skills with your neighbors in our adventure blog bestvpncanada.ca

{A review from the National Science Teachers Association}
{“Fantastic, free e-book.” – Debi, GoExploreNature.com}
{“A free e-book packed with great info.” MaryLea, PinkandGreenMama.com}

One last item to remember while going through this book, “Take only pictures, leave only footprints”. The activities are meant to happen while exploring on the beach so please use your best judgment and please do not disturb live animals or plants.

10 Beachcombing Adventures: A guide for investigating the Atlantic coast shoreline

“Children are born with a sense of wonder and an affinity for Nature.  Properly cultivated, these values can mature into ecological literacy, and eventually   into sustainable patterns of living.” – Zenobia Barlow, “Confluence of Streams”

A quick lesson in wetland ecology

May is National Wetlands Month, so what better time to get creative in sharing how much I appreciate wetlands? Here is a new graphic with an overview of 1) four main types of wetlands and 2) why wetlands are important.

Wetlands are important because they:

… reduce damage from floods.
… protect land from storm surges.
… improve the quality of our water.
… can sustain a wide variety of plants and animals.
… can slow shoreline erosion.
… can provide vital food for many commercial & recreational fisheries.
… may provide a sustainable source of valuable timber.
… many rare and endangered species call them home.
… provide animals important shelter from encroaching humans.
… moderate stream flow.
… recharge groundwater supply.

Different types of wetlands:

Marshes are fed by groundwater or surface water. Marshes are dominated by soft-stemmed vegetation. Marshes are pH neutral and, therefore are abundant with plants and animals. Marshes can be freshwater or saltwater, tidal or inland. Other common names for marshes may include: prairie potholes, wet meadows, vernal ponds.

Swamps are dominated by woody-plants that can tolerate a rich, organic soil covered in standing water. This may include trees such as the cypress, cedar, or mangrove. Swamps may also be dominated by shrubs such as the buttonbush. Swamps are fed by groundwater or surface water, which is important for ecology, of course also learning about carbon footprint and the companies that have carbonclick projects can be helpful to help the environment as well.

Bogs are fed by precipitation and do not receive water from nearby runoff, such as streams or rivers. Bogs are dominated by a spongy peat deposit and the floor is usually covered in sphagnum moss. Bogs have acidic water and are low in nutrients making them a difficult place for plants to thrive.

Fens are peat-forming wetlands and are fed by nearby drainage such as streams or rivers. Fens are high in nutrients with low acidic water. Fens are characterized by grasses, wildflowers, and sedges. Often parallel fens adjacent to one another will eventually create a bog.

For more information about anything in this post or in general about wetlands please check out this overview by the EPA or email info@beachchairscientist.com.

5 (more) fun facts about seahorses

Seahorse at the National Aquarium in DC

Seahorses are a fascinating species to observe. I took my nephew to the National Aquarium in DC this past weekend and we were memorized by the  aquatic centaurian-like bony fish (pictured right).  I’ve written about seahorses in the past, and from the traffic of that post I can tell that a seahorse post is much appreciated by the BCS readers, so I thought I’d take a some time to delve into more of their hallmark traits.

Here are  5 more fun facts about seahorses to add to the list (written almost 3 years ago!). Please feel free to comment below or email info@beachchairscientist.com if you have something you’d love to share about seahorses!

  1. The genus name of the approximately 35 species of seahorses is ‘Hippocampus’. ‘Hippo’ is Greek for ‘horse’ and ‘kampos’ is Greek for ‘sea monster’. The cross section of the hippocampus in our brain is shaped like a seahorse.
  2. For over 400 years many Eastern cultures have been using seahorses in medicines to cure asthma, lower cholesterol, as well as prevent arteriosclerosis.
  3. Seahorses uses their strong prehensile tail to grasp onto sea grasses and other stable plants. They are decent (not strong) swimmers and use their snout to suck up food (plankton, as well as tiny fish and shrimp).
  4. Often storms are a threat to adult seahorses as they will pull the seahorse off its anchoring plant. Other natural threats can include sea turtles, sharks, rays, and tuna. A major non-natural threat are divers that like to scoop up seahorses for aquariums (although, many ‘seahorse ranches’ are popping up).
  5. Seahorses lack the scales that a ‘normal’ fish might have and instead have bony plates arranged as rings. The bony plates are very similar to that of the Stegosaurus. Each seahorse species has a unique number of rings.

If you want to learn more on seahorses (in particular – how humans have learned to immortalize them in artwork, literature, and myths),  I highly recommend getting your hands on a copy of Poseidon’s Steeed: The Story of Seahorse, From Myth to Reality by Helen Scales.

An important call for more forage fish to remain in the sea

A report titled “Little Fish Big Impact”, written by the Lenfest Forage Fish Task Force, came out earlier this month recommending that the amount of forage fish (e.g., menhaden, herring, shad) that we take from the ocean should be cut in half. However, since forage fish have an annual value world-wide of $5.6 billion dollars and are almost 40% of the world’s commercial fish catch these suggestions might be a tough sell to get passed through many decisions makers. But, here is why it is important we do.

You may not typically think of forage fish, also know as ‘bait fish’, as being a high commodity for fishermen or as playing an imperative role in the ocean – but, they do indeed! It’s surprising how much these little fish play a role in our daily lives.

Within the marine food web we begin with the tiny microscopic phytoplankton (plants that get their energy from the sun). Phytoplankton are  then in turn grazed upon by tiny copepods and  they are then fed upon these forage fish and crustaceans that are fed on by larger fish (e.g., striped bass, bluefish) that are then fed upon by the top predators (e.g., tunas, swordfish) that then feed us. Easy, right? Well, Dr. Daniel Pauly pointed out that within fisheries what is happening today is an imbalance of ‘Fishing Down the Marine Food Web’.

Time increases toward the right along the blue arrow. Scale on the right gives the trophic level in the food web. (Pauly, 2003)

This is the concept that when top predators are removed smaller fish become more of a target. Which would mean that the average trophic level of the food web would shift (Trophic being the level an organism occupies within a food chain). Specifically, forage fish are the primary source of protein for penguins, marine mammals, cod, salmon, tuna, and even puffins. We use these species for the production of fish oil supplements, food for livestock, and food provided to the fish we’re farming via aquaculture.

The Lenfest Report provides information and recommendations to fisheries managers in a three-tiered approach that the Task Force says was lacking prior, which is why we’ve currently been able to harvest the amount of forage fish at such high levels. The three-tiered approach involves understanding the 1) dynamics of the fishery, 2)  knowledge of the status of the trends of the fishery’s predators, as well as 3) recommended management actions.

“Traditionally we have been managing fisheries for forage species in a manner that cannot sustain the food webs, or some of the industries, they support. As three-fourths of marine ecosystems in our study have predators highly dependent on forage fish, it is economically and biologically imperative that we develop smarter management for these small but significant species,” stated Dr. Ellen K. Pikitch of the Institute for Ocean Conservation Science at Stony Brook University (they led the Lenfest Forage Fish Task Force).

Most recently, managers in the Mid-Atlantic have noticed the increasing importance of forage fish and voted to reduce the annual harvest of menhaden from 183,000 metric tons to 174,000. Read more here on the report and what other measures are being done to keep menhaden levels more sustainable.

It will be interesting to see how this report impacts forage fisheries in the future. I certainly hope it does.

Check out this video from the Task Force to learn more on the importance of forage fish.

Lastly, here is a quick overview of what it means to be a sustainable fishery:

  • If we are referring to a sustainable wild fishery (one that is not farmed) it could be the measure of the abundance and resilience to fishing pressure, how well-managed the fishery is based on current research, and/or that the fishery is harvested in ways that do not harm the environment or have negative interactions with protected species as bycatch.
  • With farmed species a sustainable it is typically a measure of minimizing marine resources, preventing escapes or diseases to wild stocks, as well as ensuring that the fishery is not associated with high pollution or other ways of negatively harming the habitat.
  • For a good resource to discover what fishery is sustainable in your region,  please check out the Monterey Bay Seafood Watch.

100 ways to live (and die) green

Conservation and marine science education are two primary themes on BCS. And, since I’ve been dedicating a lot of time to marine science education the past few months I indulged myself with this list 100 of ways to live (and die) green. It’s a list of fun suggestions – beyond recycling day-to-day – and is appropriate since this weekend is Earth Day and this week is National Environmental Education Week! Please don’t hesitate to email info@beachchairscientist.com with any questions or comments. Feel free to comment and add to the list. I love new ideas.

  1. Install a dual-flush conversion kit.
  2. Use  water bottle (they even come with filters!).
  3. Make sure your faucets do not leak.
  4. Plug the sink to collect water for rinsing dishes.
  5. If you do have a leak, why not make it count and use the water wisely for something else.
  6. Pre-rinse your dishes for the dishwasher with a squeegee instead of rinsing in the sink.
  7. Why not install a low-flow showerhead?
  8. Filter your water from the tap.
  9. Turn off the water when you brush. (It will save about 8 gallons of water a day!)
  10. Take shorter showers.
  11. Only do full loads of laundry.
  12. Do not dump hazardous materials (e.g., oil, grease, antifreeze, pesticides, fertilizers, paints).
  13. When it’s dirty, take the car to a professional car washer. (Doing it yourself in the driveway wastes about 150 gallons of water.)
  14. Use pet-safe deicers when it snows.
  15. When your feisty pet chews the squeaker from his toy, why not put it back in and sow it up for another round of tug-o-war?
  16. Consider natural pet products for your furry little buddy.
  17. Give the wire hangers back to the dry cleaner.
  18. If you dry clean do it less often so they can bulk up more and skip on more plastic wrap.
  19. Xeriscape (i.e., plant natives to reduce the need to water).
  20. Use a rain barrel in the garden.
  21. Consider using alternatives to pressure-treated wood in your garden.
  22. Use some elbow grease to pull weeds or use a natural herbicide to get rid of weeds.
  23. Use a library. (Here I could also suggest switch to an ebook reader, but since my mom is a librarian and I know she loves her job I’ll promote a little community citizen interaction.)
  24. Buy local produce for your dinner.
  25. Switch to fairtrade coffee or tea for the morning beverage.
  26. Use a reusable bag when shopping. (You might remember the ‘Majestic Plastic Bag‘ series from last year.)
  27. Skip the meat in the dinner for a night each week.
  28. Jazz up the garden with some illuminating beautiful solar lighting.
  29. Make sure your exfoliating facial scrub doesn’t have harmful plastic beads that do not dissolve when they go down the drain.
  30. Know what ingredients are in your beauty products.
  31. Ask your workplace to consider carbon offsetting.
  32. Go ahead and send the electronic birthday card. After all, it’s the thought that counts, right?
  33. Pack your shorty’s lunch in a reusable bag.
  34. Pack their lunch items in reusable containers, too.
  35. When you use plastic cutlery, try a biodegradable option.
  36. Choose an organic version of the fabric of our lives.
  37. Try a DEET free bug repellant.
  38. Compost!
  39. Make your own cleaning products or use some natural ones that won’t harm the local watershed.
  40. Skip the paper towel and try cellulose cloths.
  41. Make certain to maximize the way you wash dishes.
  42. Wash your clothes is cold water.
  43. Get a home energy audit.
  44. Use a non toxic paint.
  45. Install Energy Star appliances.
  46. Hang dry clothes.
  47. Wear a sweater.
  48. Generate your own energy and install a DIY solar panel kit.
  49. Generate your own energy and install a DIY wind power kit.
  50. Install ceiling fans.
  51. When you’re going to leave a room for more than 15 minutes – switch the lights off.
  52. Install efficient lighting throughout your home.
  53. Donate your electronics  properly.
  54. Pay your bills online (and, ask your boss to direct deposit that obscene paycheck you don’t really need).
  55. Ask your neighborhood association to install solar lamp post lights.
  56. Go natural with your products when you’re about to have a little one.
  57. … And, after you have a little one.
  58. Decorate with plants to increase the air quality in your home.
  59. Be a little unconventional with your online shopping.
  60. Be creative in your gift wrapping and use some newspaper or magazines!
  61. Keep your car in tip-top shape to save on gas mileage (and/or go hybrid).
  62. Try to use public transportation or carpool when possible. (Or slug, DCers!)
  63. Consider rechargeable batteries.
  64. Be conservative in what you decide to print off the computer and when you do need to print do it double-sided.
  65. Find the people to call to cancel your phone book delivery.
  66. Skip the ATM receipt.
  67. Turn off the computer monitor at night.
  68. If you’re looking to buy a new computer, purchase a laptop instead of a desktop.
  69. Use recycled paper for your creative needs.
  70. Check out your neighborhood to see if there are proper bike or walk lanes and bike or walk when possible. (Check it out – May is National Bike Month!)
  71. Stop junk mail! (Did you know that the average adult receives 41 pounds of junk mail each year?)
  72. Choose a green hotel when traveling (or, my favorite – VHBO).
  73. Buy bulk. (It’s nuts – packaging makes up more than 30% of our waste!)
  74. Rock a green hosting company for your next website.
  75. Rent, borrow, or Freecycle!
  76. Save the take out container and use it as tupperware or to hand out cupcakes at your shorty’s birthday party.
  77. Bring your own mug to the local coffee shop so you don’t have to use one of theirs.
  78. Telecommute.
  79. Skip the CD or DVD purchase and download online.
  80. Stray away from imposing balloon releases unless you know they’re latex.
  81. Stray from using 6-pack rings (or cut them).
  82. From time to time use one less napkin.
  83. When fishing always be an ethical angler.
  84. Eat sustainable seafood.
  85. Skip the produce in additional plastic wrap.
  86. Participate in local clean-ups.
  87. Rock a new TV as they’re a little more efficient.
  88. Keep the freezer at least 3/4 full.
  89. Once a month bake a loaf of your own bread.
  90. Once a month why not roast your own chicken and stock up some homemade chicken broth afterward.
  91. In winter, keep the shades drawn when you’re away.
  92. When purchasing furniture find products that are earth-friendly and organic (e.g., cotton, wool, hemp, natural rubber latex).
  93. Plant a tree.
  94. Rock some vintage jewelry.
  95. Clothe diaper.
  96. Make your own play-dough with the kids.
  97. Blow your nose green. (Ewwwww … what did she say?)
  98. Recycle toner.
  99. Stay informed and educated.
  100. Be buried green.