Prolonged Climatic Stress Main Reason For Mass Extinction 65 Million Years Ago, Paleontologist Says

[Smaug]

http://www.sciencedaily.com/releases/2010/03/100326124654.htm

[Auspex]

Always more to consider...

As an ecologist, I have to be on board with the "combination of factors" idea.

[Smaug]

As an environmental student, i agree.

[JimB88]

I agree too. There were too many environmentally fragile species that survived (such as amphibians) for the events said to have taken place after the asteroid impact. Just my opinion btw.

[Nicholas]

I also agree. Just doesn't wrap up nicely with me, I think it was a variety of events or changes which lead to the extinction.

[ashcraft]

I have said in the past, and will say into the future, any long-term climatic problems would have been dealt with by the species that were dominant through evolutionary change. In my opinion it would take a sudden change to any ecosystem to lead to a mass extinction.

Catastrophist to the end.

Brent Ascraft