Condoms were originally made of animal intestines or linen.
347
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492