Only 3% of bird species have penises.
0
A scorpion can hold its breath for up to 6 days.
19
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
When dragonflies mate, their tails form a love heart.
22