Dinosaurs died from sudden temperature drop ?

I still have a hard time grapling with what could cause extinction on such a large scale. It's pretty crazy to think that a planet supporting such collosal animals with an unfathomably complex ecosystem could just dissapear. I am far from being an expert in this field but I am of the understanding that dinosaurs came in all sizes and only a very small number were in fact collosal.

They grew feathers... Good response Rhomphaia I would propose that flight would also be a most excellent survival technique to be able to forage farther and faster than any other non-aquatic species. This would give the feathered dinos 'the edge' over pedestrian species if food became scarce.

I am still waiting for the theory that excessive junk mail caused the extinction. I suspect it was because the international treaty banning dino hunting was ignored by a handful of compassionless countries. Or perhaps someone invented dino fin soup?

They grew feathers... My conure is totally a decendant of T-Rex, especially when he bites me.

Maby aliens came to visit back then and decided it would be best to kill them off in some way, maby to make way for us, maby it was us...

I suspect it was because the international treaty banning dino hunting was ignored by a handful of compassionless countries. Or perhaps someone invented dino fin soup? That was actually an obscure book reference where junk mail literally falling from the sky caused the collapse of western civilization. I forget the name, but the whole thing was a pretty funny parody of the expedition to unearth King Tut's tomb.

I thought it was official that they died because of an asteroid. Now its because of the temperature that drop'd back in their time? Whats crazy theory are they gonna think of next... I doubt any of the theories concerning the extinction of dinosaurs will have an official explanation. I personally find both theories plausible in its own way.

The article of the OP talks about the Atlantic Gulf Stream during the Cretaceous.... How would that Gulf Stream have looked, if it did even exist back then?? There wasn't much of a North Atlantic, and the Caribbean had an open connection with the Pacific. .

Well in the evolustion part of my Geography degree we were taught that the dino's died from a combination of long term climate change topped off by a comet strike that futher lowered global tempreture and finshed them off, though they would have been in decline for a long time prior to the comet. It was the straw that broke the camels back so to speak.

Yes it would , that was I was thinking, an asteroid impact can drastically change the Earth's temperature that the dinosaur were not able cope up....Maybe they are right, a sudden temperature drop did kill the dinosaurs ,,,but it was triggered by an asteroid. That's most likely. It's not impossible that the dinosaurs died of a drop in temperature (assuming that they were cold-blooded), but that raises the question, "What caused said decrease?" The most probable scenario is that a meteor collided with the planet at speeds of roughly 20,000 ft/s with a force of about 100,000 megatons of energy, ... [More]