Scientists say friendships help us stay healthy. That’s true for animals too.
Unusual Pair (above)
Animals can have friends from other species. Dogs and cats are very different but can get along.
Cleaning Up
SUZI ESZTERHAS—GETTY IMAGESThese chimpanzees know how to groom each other. Look! Each cleans the other’s fur.
Resting Easy
YEA MOMTIUK AND JOHN EASTCOTT—MINDEN PICTURESWolves stick together. They play and rest as a group. A group of wolves is called a pack.
Sailing Along
KONRAD ROTHE—MINDEN PICTURESDolphins form friendships when they are young. They enjoy swimming together.