When cats are happy, they may squeeze their eyes shut.
10
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The oldest recorded elephant lived for 82 years.
213
Mosquitoes don't just bite you, they also pee on you.
11
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255