A puppy is born blind, deaf, and toothless.
16
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Cats and dogs can hear ultrasound.
350
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20