What Killed off the Dinosaurs

alkalineangel · Sep 13, 2007, 01:47 PM

I heard it had something to do with some kind of virus or plague as well...no one knows...but the virus one makes sense...happens in the world still..

leeds fan · Sep 13, 2007, 01:56 PM

Quote:

Originally Posted by eljay1103

I don't know if I put this in the right category but me and my husband were arguing about what killed off the dinosaurs he says the ICEAGE and I say an ASTROID.... Now what killed them off?

Weve still got one , called maggie thatcher

firmbeliever · Sep 13, 2007, 02:09 PM

From what I have watched on documentaries,
It is not one thing, as others have said on this thread it is many factors ...

There was a volcano eruption which changed the world climate,which was due to the ash blocking the sun.
This in turn would have led to a HUGE climatic change,no sunlight so probably many plant life would have died which would have killed the herbivores and which in turn would spread diseases due to mass death.
Now the Carnivores will have little to eat and being diseased might have killed the last of them if the cold climates did not.

There are evidences of asteroids falling to earth,but most think that it may not have killed all of the dinosaurs.

I am no expert, it is just a scenario I built around the info I had come across from different sources.

ebaines · Sep 13, 2007, 02:15 PM

Any theory will have to account for not only the extinction of the dinosaurs but also 70% of all other species as well. I don't see how a virus could do that.

firmbeliever · Sep 13, 2007, 02:21 PM

Quote:

Originally Posted by alkalineangel

i heard it had something to do with some kind of virus or plague as well...no one knows...but the virus one makes sense...happens in the world still..

Al
I agree with the" happens in the world still" part.

Just recently in the news I read about the Ebola virus rearing its ugly head in Angola (if I remember right).

ebaines · Sep 13, 2007, 02:33 PM

Quote:

Originally Posted by firmbeliever

Al

Just recently in the news I read about the Ebola virus rearing its ugly head in Angola (if I remember right).

Yes, but as deadly as ebola might be it only affects humans (and perhaps apes? Not sure). Like most viruses it afflicts only a very narrow range of organisms - not birds, cats, fish, worms, etc etc. How would a virus afflict 70% of the world's species, across virtually all animal families?

firmbeliever · Sep 13, 2007, 02:36 PM

Quote:

Originally Posted by ebaines

Yes, but as deadly as ebola might be it only affects humans (and perhaps apes? Not sure). Like most viruses it afflicts only a very narrow range of organisms - not birds, cats, fish, worms, etc etc. How would a virus afflict 70% of the world's species, across virtually all animal families?

Do read my previous answer in this thread on what killed the dinosaurs

gallivant_fellow · Sep 19, 2007, 08:34 PM

There are centimeter thick layers of meteorite dust found in many places on the earth precisely on the level that was exposed 65 million years ago, when earth's big environmental changes began happening. Research teams run into them all of the time when looking for dinosaur fossils.

mikemcewen · Oct 16, 2007, 06:55 PM

I believe that BOTH schools of thought are correct. I theorize that the dinosaurs became extinct from a meteor impact, and that the meteor was carrying bacteria or a virus. The dinosaurs, in their already weakened state from the consequences of the comet impact, fell victim to a disease their immune systems were unable to overcome. See Panspermia and the possibility of bacterial and viral matter from space. Panspermia - Wikipedia, the free encyclopedia. Google (1918 flu epidemic) for examples of this. Dr. Chandra Wickramasinghe has been quoted on Red Orbit.com. 29 Jun 2006: Conference on Cosmic Dust and Panspermia, Cardiff University, Cardiff UK, 5-8 Sep 2006
It's all very fascinating

gallivant_fellow · Oct 20, 2007, 12:03 PM

Quote:

Originally Posted by mikemcewen

I theorize that the dinosaurs became extinct from a meteor impact, and that the meteor was carrying bacteria or a virus. The dinosaurs, in their already weakened state from the consequences of the comet impact,

Comet or meteor?

What Killed off the Dinosaurs

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