Parrot parents "name" their children with a signature call.
112
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.
17
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
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
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12