It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
-12
Cats sleep for 70% of their lives.
8
Tigers can see 6 times better at night than humans.
305
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20