Threatened and endangered species were among the dead, likely poisoned overnight by a chlorination system used to decontaminate the animals’ tank water.

A federal judge ruled that Envigo can finalize the sales for 500 of its remaining 3,000 research dogs, but it needs to improve the safety and health of the animals remaining at its facilities while federal officials decide their fate.

An odorant found in the pee of pregnant mice—and in bananas—induces stress but also relieves pain in male mice, a study shows.

And how do scientists go about answering that question?

Moulton Chinchilla Ranch, the main US source of the animals for research, had a years-long history of disturbing findings in USDA inspections.

The Australian biomedical research community is stunned by the announced wind-down of the country’s biggest supplier of mice and rats.

The agency moved to scale back its monitoring in 2019 in a way that experts in animal welfare law say was secretive, Science reveals.

Current bills in Congress would apply similar provisions to all federal agencies.

The glia seem to make up part of a newly described sensory organ, the discoverers suggest.

The lab animals had more natural microbiomes seeded by wild mice, unlike conventional models that are kept in sterile conditions.

The drop may be due to fewer inspections, but critics say the USDA also appears to be avoiding documenting the violations.

Becoming a neuroscientist with a service dog by your side presents numerous challenges. Joey Ramp, who went back to college to study her own post-traumatic stress disorder, is learning this the hard way.

United Airlines, British Airways, China Southern Airlines, and Qatar Airways face a formal complaint over their refusal to transport animals for scientific research.

Joey Ramp went back to college to study post-traumatic stress disorder. But the dogs that help her manage her own PTSD complicate her research career.

A report finds a decline in the number of experiments involving animals in 2017, noting a particular decrease in procedures on dogs and primates.

Nearly 600 signatories, including four Nobel Prize winners, urge openness about animal experiments.

A pilot program announced last month will consider combining announced and surprise inspections.

Including as few as two labs in a study improved the odds of getting the true effect size by as much as 23 percentage points, according to a replication model.

Transparency about the role of animals in drug development could help raise awareness of and appreciation for preclinical research.