The colossal squid has the largest eyes in the world.
4
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
Sharks, like other fish, have their reproductive organs in their chests.
248
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
Cats and dogs can hear ultrasound.
350
Sloths take two weeks to digest their food.
243
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17