The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
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