Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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Sloths take two weeks to digest their food.
243
Cats and dogs can hear ultrasound.
350
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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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.
19