10 Wild Facts About Reindeer-- Part 2: The Invasive Reindeer of South Georgia

5.  Ancient Artwork--  The first-known prehistoric art is of a horse on an antler.

4.  Transforming Eyes--  only known animal whose eyes change color.

3.  Invasive Reindeer of South Georgia--  British island in the Atlantic Ocean off the coast of South America.  Introduced by Norwegian whalers around 1900.  Originally 22, today 5,000.

2.  Quebec's Mass Drowning--  They migrate thousands of miles each year.  In 1984, up to 10,000 drowned when Hydro Quebec let water out from a dam.

1.  Reindeer Racing--  Can run up to 50 miles per hour.  They pull humans on skis in Finland.

Rudolph's Buddies.  --CootDeer