There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
A dairy cow can produce more milk when listening to music.
446
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6