Identification of each animal in a collective becomes possible even when individuals are never all visible simultaneously, enabling faster and more accurate analysis of collective behavior.

A social media post from the US Food and Drug Administration this week shows a big-eyed macaque staring out from behind bars. “Some drugs use 144 monkeys on average for preclinical testing,” the post ...

A coalition of 40 Democratic states, cities and counties sued the Trump administration on Thursday, challenging the recent termination of a longstanding policy allowing the Environmental Protection ...