Parrot parents "name" their children with a signature call.
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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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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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