Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Sharks have been on the planet longer than trees.
14
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Tigers can see 6 times better at night than humans.
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The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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It has been scientifically proven that stroking a cat can lower one's blood pressure!
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