Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
10
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Dogs sometimes fake being sick to get attention.
26
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17