Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Dolphins have names for one another.
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Whales and dolphins can't taste anything other than salt.
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It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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A puppy is born blind, deaf, and toothless.
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The seahorse is the only fish to have a neck.
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Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
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