Here's a message which will appear if the video isn't supported. A Flash alternative can be used here if you fancy it.
Nov 28, 2014 8:21 AM
How Redheads Work
Redheads are supposedly fiery, passionate people, but is there any truth to these stereotypes? Find out what studies have to say about redheads -- and if they'll really go extinct soon -- in this HowStuffWorks podcast.