Cows can sleep standing up, but they can only dream lying down.
745
A dairy cow can produce more milk when listening to music.
446
Domestic pigs average a top speed of about 11 miles per hour.
182
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
The colossal squid has the largest eyes in the world.
4