Tigers can see 6 times better at night than humans.
305
Dogs have been man's pet for over 14,000 years.
224
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Rattlesnake mating sessions have been known to last more than 22 hours.
232
