On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
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Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Gorillas can catch human colds and other illnesses.
205
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22