Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
Lobsters have blue blood.
476
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255