why did dinos die out?

Question

I've been looking up dinos for a while, and i've been woundering how you think dinos became extinct.

Answer 1

We know that a huge meteor hit the Earth because there's a layer of iridium around the entire planet and a huge meteor crater in Central America. And while that killed many dinosaurs, I think more than 99% of them were extinct LONG before that meteorite happened.

What killed most of the dinosaurs is the same thing that kills most of anything. They were out-competed in their native terrain by new dinosaurs, or their native terrain disappeared for one reason or another. I recall one expert suggesting that since their huge mass required a huge food supply, he thought that most of them simply ate all the available food and died off from that.

Stilll, you have consider that these guys are hardly appearing and disappearing at anything like a rapid rate. Many were around for hundreds of millions of years... some of the critters that are STILL around are thought to be relatively unchanged from those times. I can respect that.

Answer 2

"Murder on the Orient Express"...basically there was a whole lot of bad stuff going on geologically simultaneously that pushed them over the edge. There are huge traps of lava from massive volcanic outpourings which alone would have altered the climate and there is also the Chixcalub impact site, which is the mark of an enormous crater that hit the Yucatan Peninsula, triggering tsunamis, a firestorm that pretty much wiped out North America, and an instant winter in the middle of what had been summer. This would have shut down photosynthesis pretty much entirely, leaving large animals particularly vulnerable to extinction.

Answer 3

It probably has to do with an asteroid that struck the earth just north of Mexico's Yucatan peninsula about 65 million years ago. The impact would have caused lots of nasty effects; it is not clear whether these killed them off quickly or whether it took some years.

Answer 4

No one really knows for sure. There have been people saying drought caused it and some have said a giant crater knocked out some and that made others die out from no food.

Answer 5

It is a tragic story........

They all decided to conform to an extreme radical religious movement. And before the Ice age and even the meteor.....they committed mass suicide, which disturbed the ecological processes and resulted in mass extinction..........very sad

Answer 6

most scientists think a masicular event happened, such as a great habitat change, the moon breaking off, earthquake, or meteor

Answer 7

Meteor hit the earth. Fire, smoke and ash blocked the sun's rays. Vegetation and animals died.