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
Denmark has twice as many pigs as there are people.
66
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22