Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The elephant brain weighs about 6,000g.
274
Two dogs were among the Titanic survivors.
262
Domestic pigs average a top speed of about 11 miles per hour.
182
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255