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jake-head-shot.jpgJake Young is a MD/PhD student at Mount Sinai School of Medicine in NYC getting a PhD in Behavioral Neuroscience. He holds a BS and MS in Biological Sciences from Stanford University. If a volcano were to erupt Pompei-style in Central Park, his body would be preserved in a scoliotic posture over his lab desk. Archeaologists would later conclude that he spent most of his day training rats to perform tricks, until he went blind building electrical equipment by hand using a dissecting microscope. But, still, he died happy...because science is cool.

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« Elsewhere on the Interweb (3/13/08) | Main | In honor of Pi Day... »

Sand dollar larva clone themselves in response to danger

Category: Biology
Posted on: March 14, 2008 5:39 PM, by NotoriousLTP

I wish I could do this:

Scientists exposed 4-day-old sand dollar larvae to fish mucus, a sign that danger is close. They found that the larvae created clones of themselves within 24 hours.

"It's the first time we've seen anything clone itself in response to cues that predators are near," said researcher Dawn Vaughn, a biology doctoral student at the University of Washington's Friday Harbor Laboratories.

Sand dollar larvae are tiny globs that float along with plankton in the sea, an easy target for hungry fish. When they are 6 weeks old, they settle to the seafloor and eventually become adult sand dollars with their distinctive petal-patterned shells.

After being exposed to fish mucus, the larvae formed embryo-like buds that eventually detached and developed into new, genetically-identical larvae that were much smaller than the originals. The parent larvae were left smaller, too, measuring about half their beginning size.

Larvae that were not exposed to the fish mucus did not clone themselves.

How friggin' awesome would it be if humans did this?

"Muahahaha! You can kill me, but you can't kill me and all my clones. Now we run in different directions. Muahaha!

...Hey!...Wait...stop trying to kill me and all my clones! Just because we can't run very fast doesn't mean this shouldn't work."

It would be like that character from X-men: the Last Stand, only much more "not-total-nonsensey."

exclusivexmm.jpg

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