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Open Science in Africa, defend the ADA, the value of the outdoors, Minke whale rides, and more! Monday Morning Salvage: February 19, 2018.

Posted on February 19, 2018February 19, 2018 By Andrew Thaler
Weekly Salvage

Foghorn (A Call to Action!)

  • Sign up for AfricaOSH: The Africa Open Science Hardware Gathering and meet some of the most incredible, innovative technologists in the world!
  • Remember when the disability community put their bodies on the line to defend the Affordable Care Act? Remember the videos of people in wheelchairs being handcuffed outside Mitch McConnell’s office? Last week, the House voted to gut the Americans with Disabilities Act. There’s no bill in the Senate yet, but the time to mobilize is now. Call your Senators and defend the ADA.

Flotsam (what we’re obsessed with right now)

  • In the annuals of obvious thing that still need to be said: protecting wild places is better for Americans and better for the economy than strip mining them. Outdoor Recreation Is a Bigger Economic Booster Than Mining.
  • The Cousteau Society shares a great little clip of all the great Cousteau tech.

Read More “Open Science in Africa, defend the ADA, the value of the outdoors, Minke whale rides, and more! Monday Morning Salvage: February 19, 2018.” »

Five more marine organisms that put their superhero counterparts to shame

Posted on April 17, 2013January 27, 2015 By Andrew Thaler
Popular Culture, Science

Evolution is the most creative force on the planet. Everywhere we look, we find species with novel and phenomenal adaptations that put their comic book brethren to shame. In no ecosystem is this more apparent than in the vast and unfathomable ocean. Marine species, especially those in the deep sea, have evolved to survive in a environment that is completely alien to us. Several months ago, I unveiled “Five organisms with real super powers that rival their comic book counterparts“, but that was just the beginning. Without further adieu, I give you 5 more marine organisms that put their superhero counterparts to shame (and one bonus critter).

The blind shrimp with super senses

Rimicaris exoculata – http://eol.org/data_objects/13231836

In the deep sea, eyes are not among the most useful sense organs. While many deep-sea species have extremely reduced eyes, some have abandoned these organs entirely. Rimicaris exoculata is a shrimp endemic to deep-sea hydrothermal vents in the mid-Atlantic that is completely eyeless. Its carapace is smooth, without even a hint of reduced, vestigial eyes. This, unfortunately, is a problem because Rimicaris exoculata is a farmer. The blind shrimp grows bacteria in its gill chamber, bacteria that can convert the chemical-rich hydrothermal vent fluid into food for the shrimp.

For lack of a more descriptive adjective, hydrothermal vents are hot. Some can exceed 400°C. Rimicaris exoculata needs to get close to this hot vent fluid to feed its crop of bacteria, but not so close as to become a hydrothermal hors d’oeuvre. And so, the blind shrimp evolved a completely new light-sensitive organ mounted on the top of its carapace–the rhodopsin-rich dorsal eyespot.

The dorsal eyespot of Rimicaris exoculata doesn’t “see” in the normal sense, there is still almost no light in the deep sea. Rather, this shrimp is adapted to detect the black body radiation emitted by the hydrothermal vent. For Rimicaris exoculata, the deep sea glows with the light of super-heated hydrothermal fluid, allowing it to both find food for its bacterial crop and avoid getting cooked itself.

It should be no surprise that Rimicaris exoculata is undoubtedly the favorite deep sea organism of another blind champion with super senses–Daredevil.

Read More “Five more marine organisms that put their superhero counterparts to shame” »

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