Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Only 3% of bird species have penises.
0
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Tigers can see 6 times better at night than humans.
305
Lurch, a Watusi bull, had the largest horns in the world.
32