Early American humans hunted car-size armadillos and used their shells for houses.
12
Dogs sometimes fake being sick to get attention.
26
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Jellyfish as a species are actually older than dinosaurs and sharks.
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