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
Lobsters have blue blood.
476
Female kangaroos have three vaginas.
2
A lion in the wild usually makes no more than twenty kills a year.
186
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6