Cows can sleep standing up, but they can only dream lying down.
745
Early American humans hunted car-size armadillos and used their shells for houses.
12
Dolphins have names for one another.
18
Lobsters have blue blood.
476
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
Tigers can see 6 times better at night than humans.
305