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You won't see them on your favorite cooking show any time soon, but chimps prefer their food cooked and will bring items to be cooked before they eat them

WASHINGTON - The National Institutes of Health is sending its last remaining research chimpanzees into retirement - as soon as a federal sanctuary has room for them. The government already had declared that the use of humans' closest relative as a test subject was coming to an end. In 2013, the NIH said it would retire most of the several hundred government-owned chimps still living at research laboratories. But it set aside 50 animals to be on standby just in case they still were needed for a public-health emergency or some other extreme situation. Wednesday, the agency said those chimps' lab days are over, too.

Human and Chimp genome comparisons

That acoustic convergence suggests that an important element of language cognition may have been present 7 million to 13 million years ago, in the last common ancestor of chimpanzees and humans.

Over the past few decades, genetic research has revealed two deep truths about people. The first is that all humans are closely related-more closely related than all chimps, even though there are many more humans around today. Everyone has the same collection of genes, but with the exception of identical twins, everyone has slightly different versions of some of them. Studies of this genetic diversity have allowed scientists to reconstruct a kind of family tree of human populations. That has revealed the second deep truth: In a very real sense, all people alive today are Africans.