Sheep, goats, octopuses, and toads have rectangular pupils.
7
The colossal squid has the largest eyes in the world.
4
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
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Rattlesnake mating sessions have been known to last more than 22 hours.
232