An alligator can go through 2,000 to 3,000 teeth in a lifetime.
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The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Early American humans hunted car-size armadillos and used their shells for houses.
12
Dogs sometimes fake being sick to get attention.
26
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