an animal sedative that officials say is increasingly being mixed with fentanyl. As with fentanyl test strips, these pieces of paper have a reagent that can help users detect whether a drug has ...

A new paper provides a stark reminder that the virus responsible for COVID-19 is still spreading, with 9 animals out of 47 ...

Well before a human receives the first dose of an experimental drug, it’s evaluated in an animal to test for toxicity. Monkeys are often chosen for their genetic similarities to humans ...