Lobsters have blue blood.
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The reindeer is the only mammal that can see UV light.
17
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
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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