1,000-FOLD: The factor by which a single shot of an experimental injection reduced levels of HIV in monkeys for at least 30 ...

Research suggests some animal species can perform counting, too: experiments in the 1950s (recently replicated in mice) found that rats could be trained to press a lever a set number of times between ...

Larry Covelli was a conscientious IACUC chairman and wanted reasonable assurance that the smallest number of animals that led to scientifically valid results would be used in approved protocols.

These figures almost certainly understate the actual number of animals killed, as program insiders have long lamented that Wildlife Services kills many more animals than it reports. “I’m horrified by ...

The four barn fires with the highest number of farm animal deaths, each of which took the lives of hundreds of thousands of animals at once, all involved cage-free hens at large commercial facilities.