The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Rattlesnake mating sessions have been known to last more than 22 hours.
232
When dragonflies mate, their tails form a love heart.
22
A scorpion can hold its breath for up to 6 days.
19
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The oldest recorded elephant lived for 82 years.
213