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Chimpanzees at Biology News

Retrovirus struck ancestors of chimpanzees and gorillas millions of years ago, but did not affect ancestral humans

The ancestors of chimpanzees and gorillas were infected with a deadly retrovirus about three to four million years ago, but there is no evidence it infected ancestors of modern-day humans, according to research by genome scientists. The virus struck after humans had split off the evolutionary tree from primates, researchers said. The infection may have played a role in the evolution of such great...

Poaching, logging, and outbreaks of Ebola threaten central African gorillas and chimpanzees

Experts call for $30 million action plan to save mankind's closest relatives An action plan drafted by more than 70 primatologists and other experts who met in B...

Chimpanzees can transmit cultural behavior to multiple 'generations'

Transferring knowledge through a chain of generations is a behavior not exclusive to humans, according to new findings by researchers at the Yerkes National Primate Research Center of Emory University and the University of St. Andrews, Scotland. For the first time, researchers have shown chimpanzees exhibit generational learning behavior similar to that in humans. Unlike previous findings that in...

UAB researchers confirm HIV-1 originated in wild chimpanzees

An international team of scientists, led by researchers at the University of Alabama at Birmingham (UAB), has discovered a crucial missing link in the search for the origin of HIV-1, the virus responsible for human AIDS. That missing link is the natural reservoir of the virus, which the team has found in wild-living chimpanzees in southern Cameroon. The findings provide important clues to how the...

Male chimpanzees prefer mating with old females

Researchers studying chimpanzee mating preferences have found that although male chimpanzees prefer some females over others, they prefer older, not younger, females as mates. The findings uncover a stark contrast between chimpanzee behavior and that of humans, their primate cousins. The basis for this difference may lie in the fact that whereas chimpanzees participate in a relatively promiscuous...

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Male Chimpanzees find Older Females Sexy

When it comes to mating, male chimpanzees have the opposite taste when compared to the males of one of their nearest biological species, human beings, //according to a study published Tuesday. Unlike human males who prefer younger mates, male chimpanzees like older females and turn up their nose at younger ones. The observation was reported in the journal, Current Biology, based on stu...
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