Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
A group of pugs is called a grumble.
10
Female kangaroos have three vaginas.
2
One in three dog owners say they have talked to their pets on the phone.
427
Parrot parents "name" their children with a signature call.
112