Cats recognise the voice of their owner, but never evolved to care.
22
Two dogs were among the Titanic survivors.
262
One in three dog owners say they have talked to their pets on the phone.
427
Early American humans hunted car-size armadillos and used their shells for houses.
12
Cats and dogs can hear ultrasound.
350
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
