There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
The cat brain weighs about 30g.
167
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
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
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12