Only 3% of bird species have penises.
0
Alligators can live up to 100 years.
337
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
A domestic cat can sprint at about 31 miles per hour.
274