Humans, Other Mammals Similarly Voice Frustrations

Pet owners and scientists who spend a lot of time in the wild say that they can tell when an animal is upset by the sound of its voice. Now new analyses of animal calls may offer an explanation; humans seem to express frustration ...

Ancient Lemurs Take Bite Out of Evolutionary Tree (w/ Video)

(PhysOrg.com) -- About 40 miles outside Cairo, Egypt, National Science Foundation-supported paleontologists from three American universities are revealing features of a newly discovered African primate and solving a riddle ...

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