The newly discovered microbe seems to be responsible for a mysterious neurological disease that has killed dozens of critically endangered Western chimpanzees.

Study suggests chimpanzees get by with a little help from their primate pals.

Symbiotic gut bacteria evolved and diverged along with ape and human lineages, researchers find. 

A Louisiana research center is sending more than 200 chimpanzees to a sanctuary in Georgia.

After losing out on “personhood” in a legal battle, two chimpanzees that were held at a university in New York return to a research center in Louisiana.

Animals used in research are property, a New York State Supreme Court justice rules.

The US Fish and Wildlife Service moves captive chimpanzees under the umbrella of federal protection that covers their wild counterparts.

A New York Supreme Court judge has ordered university officials to defend their custody of two chimpanzees used in research.

Researchers have captured footage of wild chimpanzees teaching each other to use tools, lending support to the idea that humans aren’t the only primates to engage in social learning.

How the US government impacted life science research in 2013

The US President has signed a bill to support the retirement of federally owned research chimpanzees over the next five years.

The 60 NIH chimpanzees that were set to enjoy their remaining years at a sanctuary in Louisiana will have to wait a little longer, thanks to Congress’s ongoing budgeting problems.

The NIH will significantly reduce the use of chimpanzees in biomedical research and retire the majority of its chimps to sanctuaries.

A proposal to grant captive chimpanzees the same endangered species status as wild chimps could hamper medical research.

A National Institutes of Health working group urges the agency to send most of its chimpanzees to a national sanctuary and halt half of the experiments involving such animals.

February 2012's selection of notable quotes

A roundup of recent discoveries in behavior research

The animal rights organization purchases shares of a research facility in a bid to end chimpanzee testing at the facility.

The decision comes after a committee found that the vast majority of research can be done without using chimpanzees.