Microbes in our gut are key to staying healthy, but scientists are coming to realize that isn’t the case for all animals.
Many animals use threatening signals to steer clear of costly bouts, but for these boxing crustaceans, the fights are the signals.
Stripes laid down by tooth enamel could reveal why big mammals grow slower—and live longer—than small ones.
Playful teasing might have evolved to help our ape ancestors gather crucial intel on their family’s and friends’ thoughts.
Cows are suffering on even the most “humane” dairy farms.
Portraits of once-abandoned animals and the stories of the families that took them in
How an exotic game hunter collected live animals from throughout the United States and convinced Congress to give him a prime plot of land
Crabs and fish weren’t built for oceans this acidic.
A collection of recent images showing people and animals both surviving and enjoying frigid midwinter conditions.