Duck-Billed Dinosaurs Endured Long, Dark Polar Winters (Alaska)

[Oxytropidoceras]

Duck-Billed Dinosaurs Endured Long, Dark

Polar Winters, ScienceDaily, April 11, 2012

http://www.sciencedaily.com/releases/2012/04/120411131915.htm

http://scienceblog.com/53228/duck-billed-dinosaurs-endured-long-dark-polar-winters/

Duck-billed dinosaurs endured long, dark

polar winters by Preston Moretz, April 10, 2012

http://news.temple.edu/news/2012-04-10/duck-billed-dinosaurs-endured-long-dark-polar-winters

The paper is:

Chinsamy, A., D. B. Thomas, A. R. Tumarkin-

Deratzian, and A. R. Fiorillo, 2010, Hadrosaurs

Were Perennial Polar Residents. The Anatomical

Record: Advances in Integrative Anatomy

and Evolutionary Biology. vol. 295, no. 4,

pp. 610–614.

http://onlinelibrary.wiley.com/doi/10.1002/ar.22428/abstract

Yours,

Paul H.

[ashcraft]

Very interesting, but I don't know if I agree with their conclusions. It would be an interesting study to see if caribou bones show the same growth patterns. They do migrate, but it isn't exactly to a warm summer beach. I would assume they are under fairly stressful conditions during the winter, I know our deer here are, and the Caribou don't make it nearly this far south.

Brent Ashcraft