A Key Fossil

Had a great lunch with SFU prof Joan Sharp. She told me about the fossil Tiktaalik - a fish with fins that had wrists and elbows and found on Ellesmere Island on 2004. Here's some more info on Wikipedia:

http://en.wikipedia.org/wiki/Tiktaalik

A good book to accompany this is "Your Inner Fish"

http://discovermagazine.com/2008/feb/your-inner-fish