When cats are happy, they may squeeze their eyes shut.
10
Dogs have been man's pet for over 14,000 years.
224
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
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
A lion in the wild usually makes no more than twenty kills a year.
186
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255