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
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
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It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
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Jumping fleas can accelerate 50 times faster than the space shuttle.
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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
Tigers can see 6 times better at night than humans.
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