The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
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
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Lobsters have blue blood.
476
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12