Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
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Sloths take two weeks to digest their food.
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Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
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The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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