Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
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Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
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A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
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There's a rare breed of pig that looks like a sheep.
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A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
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The ancestor of all domestic cats is the African Wild Cat which still exists today.
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Alligators can live up to 100 years.
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