Animals

Mice woken at odd hours may skew research results—and most studies don’t track the timing

An ambitious and popular project to connect the dangerously inbred Santa Monica mountain lions to a larger population is about to break ground

A lost “treasure trove” of bird samples reveals how eye shape changes with environment

Here’s how researchers are zeroing in on the culprit

Their acrobatic leaping skills could serve as inspiration for new robotics

Brown dwarfs, stuttering, quantum chemistry, and more

Young dogs, apes and other animals develop skills needed to survive and reproduce

A new study found large species are rare, but those with fewer individuals are abundant

By associating caffeinated sugar water and a target scent, researchers teach bumblebees to stay on task

Their complex songs have striking similarities to Beethoven, Tuvan throat singing, a Disney musical and Kendrick Lamar

Researchers explore how an amphetamine and a psychedelic help parasitic fungi spread their spores through insects’ doomed mating attempts

As a documentary about a cephalopod contends for an Oscar, a new study reveals the sophistication of the animals’ inner experiences