Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A dairy cow can produce more milk when listening to music.
446
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6