Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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Lurch, a Watusi bull, had the largest horns in the world.
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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.
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There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
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Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
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