There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
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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
Cats and dogs can hear ultrasound.
350
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6