Dolphins have names for one another.
18
Moths are unable to fly during an earthquake.
328
Sheep, goats, octopuses, and toads have rectangular pupils.
7
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
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
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
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19