Featured by Jan Hoole/The Conversation
Is your dog actually smart? Depends on its memory.
Playtime can be a good way to test a pet’s genius.
Four-legged whales once straddled land and sea
Meet Peregocetus pacificus.
Sloths aren’t the picky eaters we thought they were
When their favorite food isn't available, they will try something else.
Scientists are trying to figure out where the heck horses came from
A new study shows how little we know about their origins.