A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
When dragonflies mate, their tails form a love heart.
22
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71