When dragonflies mate, their tails form a love heart.
22
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
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.
17
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.
71