Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
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The reindeer is the only mammal that can see UV light.
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When dragonflies mate, their tails form a love heart.
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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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