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
Tigers can see 6 times better at night than humans.
305
Cats and dogs can hear ultrasound.
350
Two dogs were among the Titanic survivors.
262
Baks the blind boxer has a seeing eye goose named Buttons; a four-year-old goose who leads the pup around everywhere either by hanging onto him with her neck, or by honking to tell him which way to go.
16
A dairy cow can produce more milk when listening to music.
446