The average cat sleeps about 2/3 of the day.
203
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A shrimp's heart is in its head.
32
When a giraffe's baby is born it falls from a height of six feet, normally without being hurt.
126
Some species of fish have voices!
81
The pea aphid insect explodes itself thereby sacrificing its life to protect its relatives from predators.
3
Sheep, goats, octopuses, and toads have rectangular pupils.
7