A killer whale's heart beats 30 times a minute under water, 60 times a minute on the surface.
30
A cow produces around 200,000 glasses of milk in her lifetime.
373
An eagle can attack, kill, and carry away an animal as large as a small deer.
38
No one has ever been able to domesticate the African elephant. Only the Indian elephant can be trained by man.
39
A 42-foot sperm whale has about 7 tons of oil in it.
209
Bats sleep 18-20 hours per day.
5