- Snakes can't bite in rivers or swamps (they would drown otherwise).
- The Fibonacci sequence: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, .....
- Whales have the slowest metabolism of all animals.
- The cheetah is the only cat that can't retract it's claws.
- Rain contains vitamin B12.
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