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Think chimpanzee beds are dirtier than human ones? Think again

Chimpanzees (Pan troglodytes) appear to keep tidier sleeping arrangements than humans do. That's one finding of a recent study that evaluated the microbes and arthropods found in the treetop beds that chimpanzees make each night.

"We know that human homes are effectively their own ecosystems, and human beds often contain a subset of the taxa --...

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The mystery of lime-green lizard blood

Green blood is one of the most unusual characteristics in the animal kingdom, but it's the hallmark of a group of lizards in New Guinea. Prasinohaema are green-blooded skinks, or a type of lizard. The muscles, bones and tongues of these lizards appear bright, lime-green due to high levels of biliverdin, or a green bile...

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Early evidence of use of a bit on domestic donkeys found in the Near East

Donkeys may have worn bits as early as the third millennium BCE, long before the introduction of horses in the ancient Near East, according to a study published May 16, 2018 in the open-access journal PLOS ONE by Haskel Greenfield from University of Manitoba, Canada, Aren Maeir from Bar-Ilan University, and colleagues.

Donkeys are known to...

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Worm-eating mice reveal how evolution works on islands

Australia has a bunch of kangaroo species, Madagascar has multiple species of lemurs, the Galapagos Islands have boulder-sized tortoises -- islands get lots of cool animals. That's because when animals are isolated on islands, they can evolve into strange new species found nowhere else on Earth. But what's the cut-off -- how small can an...

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