Chimpanzees 'hunt using spears'
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Chimpanzees have been observed making and using wooden spears to hunt other primates.
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Female sheep are found to use their horns to fight over food during a new study by Edinburgh scientists.
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Hungry refugees in Tanzania are eating  chimpanzees and other endangered species in order to supplement  their meager diet, an international conservation group said on  Tuesday.
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A study of an ancient human pest -- head lice -- suggests that the ancestors of today&#39;s American Indians may have met and fought with
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Chimpanzees and humans split from a common ancestor just 4 million years ago -- a much shorter time than current estimates of 5 million to 7 million years ago, according to a study published on Friday.
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A battle won by human ancestors against a virus that infected chimpanzees and other primates millions of years ago may have left people today more vulnerable to the AIDS virus, scientists said on Thursday.
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AMSTERDAM -- Dozens of chimpanzees from a Dutch laboratory face a housing crisis after plans for their early retirement on the Spanish coast collapsed because of residents' fears they would carry infectious diseases.
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Apparently, the same things that makes large, toothy predators so good at hunting big game also make them more vulnerable to extinction - as is shown in a new study of a
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Chimpanzees in West Africa were using stone tools to crack nuts 4,300 years ago, archaeologists say.
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See newly observed footage of tool-making behavior that further blurs the line between humans and chimpanzees, our closest living relatives.
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US researchers say humans began endurance running about 2 million years ago to help hunt for prey.
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Hungry refugees in Tanzania are eating chimpanzees and other endangered species in order to supplement their meager diet, an international conservation group said on Tuesday.
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Photographer and conservationist Karl Ammann discusses why he takes often shocking photos of African apes and other rare animals killed for meat. With photo galleries.
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Wild chimpanzees have been filmed using tools in combination to extract termites from mounds&#151;further evidence that tool use is not unique to humans.
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Liberating chimpanzees with soldiers at her side, performing surgeries in the wild, and demonizing ape-meat traders, Sheri Speede is helping change the way a nation looks at apes.
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Pygmy chimpanzees, one of humanity's closest living relatives, have been pushed to the brink of extinction in the war-battered Democratic Republic of Congo, conservation group WWF International said on Thursday.
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Scientists believe a chimp virus may hold the clue in the long-running battle to develop a malaria vaccine.