The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
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Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
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The oldest recorded elephant lived for 82 years.
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A group of pugs is called a grumble.
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There's a rare breed of pig that looks like a sheep.
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