Jellyfish as a species are actually older than dinosaurs and sharks.
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The elephant brain weighs about 6,000g.
274
Lurch, a Watusi bull, had the largest horns in the world.
32
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
When dragonflies mate, their tails form a love heart.
22
Squirrels forget where they hide about half of their nuts.
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