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.
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Cows can sleep standing up, but they can only dream lying down.
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Gorillas can catch human colds and other illnesses.
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The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
10
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
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