Cats and dogs can hear ultrasound.
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Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
Penguins have a gland above their eye that turns saltwater into freshwater.
12
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.
22
Dogs have been man's pet for over 14,000 years.
224
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456