Historum - History Forums  

Go Back   Historum - History Forums > Themes in History > Natural Environment
Register Forums Blogs Social Groups Mark Forums Read

Natural Environment How Human History has been impacted by the environment, science, nature, geography, weather, and natural phenomena


Reply
 
LinkBack Thread Tools Display Modes
Old June 27th, 2006, 10:00 AM   #1
Lecturer
 
Joined: Jun 2006
From: Montana Mountains
Posts: 254
What killed off the dinosaurs?


I guess this can be considered an ancient topic. It doesn't get any more ancient than dinosaurs. Popular theories say the dinosaurs went extinct because of an asteroid hit on earth. Other people say Volcanic eruptions or earthquakes or whatever. All I can picture is an Armageddon type atmosphere..

What do you think killed the dinosaurs?
tedkaw is offline  
Remove Ads
Old June 27th, 2006, 02:13 PM   #2

Commander's Avatar
Historian
 
Joined: Jun 2006
From: Jacksonville, FL
Posts: 1,362

I've heard that scientists think a huge asteroid crashed near the Yucatan Penninsula in Mexico near the Gulf of Mexico... and that impact could have been large enough to kick a lot of dirt into the atmosphere. This would cause the earths temperature to change and vegetation would die from a lack of sunlight. It all had a chain effect and eventually killed off the dinosaurs..
Commander is offline  
Old July 4th, 2006, 07:37 AM   #3
Citizen
 
Joined: Jul 2006
From: UK
Posts: 5

I know it doesn't seem like it, but we're in the middle of another great extinction event. This one is caused mainly by foreign travel. For example, grey squirrels are introduced into Britain where they kill off the native reds. Or rats are carried by ships to where the ground-nesting dodos lived, and eat their eggs. Rabbits in Australia is another example.

A lot of species are dying out because they can't compete with recently introduced aliens. The most damaging of these alien species is man, but we're not the only one.

I think the dinosaurs had a similar problem, for different reasons. Obviously they didn't have boats and planes to contend with, but they did have shifting landmasses. I believe the pass between America and Siberia opened up. That would have introduced a lot of new species, some of which would have killed off less dinosaurs that were not as well adapted as they were.
Obelia is offline  
Old July 5th, 2006, 06:03 AM   #4
Lecturer
 
Joined: Jun 2006
Posts: 268

so maybe if the land masses are still shifting, then in a million years time when North America crashes into Asia, we will all fight each other off and become extinct
kahn is offline  
Old July 6th, 2006, 03:52 AM   #5
Citizen
 
Joined: Jul 2006
Posts: 5

I do agree with the scientists in that i believe it was an asteroid. It does make sense, what with the theory of perpetual darkness caused by the dirt in the atmosphere. Although, why it didn't kill off all life is another question...
murph is offline  
Old July 6th, 2006, 06:40 AM   #6
Citizen
 
Joined: Jul 2006
Posts: 11

An asteroid make sense if you don't dig too deep.

Yes, all dinosaurs have been killed by an asteroid but left all other life forms intact?

What about the crocodiles? They are almost direct descendants of the dinosaurs.

I think the migration of new species, the ice age and the shifting of landmasses are the most plausible explanations.
Fredto is offline  
Old July 6th, 2006, 11:06 AM   #7

Commander's Avatar
Historian
 
Joined: Jun 2006
From: Jacksonville, FL
Posts: 1,362

Haven't roaches been around since the time of the dinosaurs? man nothing kills them but a can of raid.
Commander is offline  
Old March 22nd, 2009, 08:18 AM   #8

tjadams's Avatar
Epicurean
 
Joined: Mar 2009
From: Texas
Posts: 25,362
Blog Entries: 6
Re: what killed off dinosaurs?


Quote:
Originally Posted by Fredto View Post
I think the migration of new species, the ice age and the shifting of landmasses are the most plausible explanations.

I think an asteroid did strike the earth, but, it wasn't the fait accompli wound. Coupled with that strike, plate tectonics & atmospheric changes were the Hell broth that did them in.
tjadams is offline  
Old March 22nd, 2009, 08:50 AM   #9
Citizen
 
Joined: Mar 2009
From: Texas
Posts: 42
Re: what killed off dinosaurs?


I agree, adams...it was a combination of things, many of them atmospheric...
also, we have to think about the great ice melts that could have cut off various species from their migratory grounds, or even drowned out many species. Those who survived were the ones who learned to adapt.
duckmom7 is offline  
Old March 22nd, 2009, 09:02 AM   #10

Richard Stanbery's Avatar
Historian
 
Joined: Jan 2009
From: Tennessee
Posts: 8,298
Re: what killed off dinosaurs?


I think back to all those drawings of Romans and other ancient men/hunters fighting dinos (surprisingly well drawn and accurately) and the cave drawings, dragon stories, etc...and I wonder if the dinos all really did dies off in some kind of mass extinction. I just have the mixed idea that they died off slowly and gradually for some reason. Maybe the dragons of the middle ages were dinos remnants.

I just find it strange that every ancient culture had dragon legends. I also find it strange that Herodotus, the father of modern history, claimed that he personally went to Arabia to see the winged serpent. He commented that it is well that they dont breed well, else humanity could not withstand them.

Conventional science tells us that this is impossible, but who listens to that anyway?...>
Richard Stanbery is offline  
Reply

  Historum > Themes in History > Natural Environment

Tags
dinosaurs, killed



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
So if dinosaurs were still around... Salah Speculative History 71 November 6th, 2016 08:28 AM
How Would Ancient Man Have Described Dinosaurs? oshron Speculative History 21 June 27th, 2013 02:03 PM
What took out the dinosaurs? neon Speculative History 3 March 5th, 2011 08:37 PM

Copyright © 2006-2013 Historum. All rights reserved.