To read an a fascinating article written by Kieran Mulvaney at the Discovery News website entitled, "Whales Adapted Appetites to survive Ice Age" please click on the following link:
http://news.discovery.com/earth/gray-whales-survived-ice-ages-changing-climates-110707.html
Source of image:http://upload.wikimedia.org/wikipedia/commons/9/9e/Humpback_stellwagen_edit.jpg
