Cats sleep for 70% of their lives.
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There are approximately three chickens for every human on Earth.
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Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
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In Australia, there are spiders big enough to eat snakes.
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The reindeer is the only mammal that can see UV light.
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The colossal squid has the largest eyes in the world.
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Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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