The elephant brain weighs about 6,000g.
274
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
The oldest recorded elephant lived for 82 years.
213
Only 3% of bird species have penises.
0
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Female kangaroos have three vaginas.
2
A lion in the wild usually makes no more than twenty kills a year.
186