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17 April 2014 12:48 pm ,
Vol. 344 ,
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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ScienceShot: Return of the Drakozoon!
5 August 2010 11:52 am
With its gooey exterior and roving tentacles, Drakozoon kalumon looks (and sounds) like it came out of a sci-fi movie. But this bloblike ocean dweller was actually one of Earth's earliest animals. Thanks to a 3D reconstruction created by slicing the rare fossil into 200 pieces and scanning them through a computer, scientists believe the 400-million-year-old creature sported a leathery exterior and a protective hood, which it probably used to hide its tentacles when predators were nearby. Drakozoon also had a segmented body, the researchers report online this week in Biology Letters, suggesting that the earliest animals were made of repeating units, like the present-day earthworm. This critter was only a little thicker than your thumbnail, however, so Hollywood may want to look elsewhere for its next movie monster.
See more ScienceShots.