Why dinnasours extincted all together?

Question

We all are aware about the two facts - 1 dinnasours existed.

2. dinassours exincted

I would like to know what caused their extinct all together.....

Answer 1

Coz they couldn't figure out a way to get extinct one by one

Answer 2

i giant meteor hit the earth and the dust rose up and destroyed the plants and that killed the plant eater dinosours and then the meat eaters ran out of animals to eat and then died so they all died

Answer 3

there r tonnes of theories. just look it up on google. but the most widely accepted r the bolide impact theory (a comet or asteroid hitting the earth causing large tsunamis) climate changes due to natural greenhouse/icehouse effects, and extreme tectonic activity like volcanic explosions and major earthquakes.

Answer 4

Somebody let hunting season go too long.  :-)

There's a place in Texas where there are dinosaur tracks (heat sealed) with what looks like humanoid tracks inside them (also heat sealed).  The dinosaur tracks and the humanoid tracks suggest that both were traveling in the same direction.  (Maybe trying to get away from a fire.)

Answer 5

r u rely asking that?ok look either a huge virus was unleashed that killed to many of them and they just died out or a giant valcanoe urupted and blew out enough smoke debree and ash that it just made a miny ice age that lastedfor mabe 30/40 yearsand just none of the dinosours could survive.then we com to the one wer most people think happened.a meteor hit the earth that was so large that it just blew everythang apart basically/go to wikipedia to see how and wat meteors can do].they think it hit some wer around mexico in the water.or hey mabe god decided to make man so he just sent basic h**l on earth down and destroyed most life except rodents bug and fish mainly.or all of those things happened who nos.

Answer 6

Many theories  based on meteorites  but they really did not die all at the same time some hung on over a period of time say some another theory, the theory I believe in is a mass methane release caused by warming how else do you explain Dino's wrapped around their young as if to protect them.

Answer 7

Dinosaurs didn't all become extinct at one time. There had been a number of extinction events prior to the terminal Cretaceous one e.g. the Cenomanian extinction, which eliminated the spinosaurs and many sauropods, especially in North America. Stegosaurs had disappeared even earlier, around mid early Cretaceous. Just a few million years before the K-T, a number of dinosaur lineages apparently perished or waned in North America. Centrosaurines, lambeosaurs, saurolophines, and nodosaurs may not have made it to the K-T. Chicxulub wiped out the remaining no-avian dinosaurs c 65.5 million years ago, but birds are often considered surviving dinosaurs.

Answer 8

Global warming. Those dang dinos went a little nuts with their SUVs and polluting like we are right now ;)

No seriously, it is said that there was some sort of asteroid that hit the earth and caused a mass extinction either by instant death by the blast or the survivors starved to death during a "nuclear" winter because the sun was blocked out by the dust in the sky which made plant life impossible to sustain.

Answer 9

They're not all extinct.  Look it up...some of the animals we know today were around back then too.  They are dinosaurs that survived.

Hint: alligators.

Answer 10

meteor hit the earth triggering a drastic climate change.. dinosaurs went extinct, actually alligators (ancestor) date back to that era, but thats a different story.. if you didnt knwo humans did not exist at this time

Answer 11

Extincted is not a word lol. It's became extinct.

Answer 12

No one knows, theres pretty much only two theories:

1. A massive meteorite from space collided woth earth and blanketed the suns rays for  millions of years causing everything to die.

2. A Massive volcano erupted caused by a earthquake so loarge it would have killed everything.

But still, no one will ever know.

Answer 13

Well havent you heard the saying "when a butterfly flaps its wings, theres a tsunami on the other side of the planet" Its similar to that. When something really major happens to the earths clients things go extinct and the climate and everything changes. Like if the earth went really cold, All the plants would die, all the dinosaurs that ate the plants would die, all the dinosaurs that ate the plant eating dinosaurs would die. its a chain reaction that goes across the world that causes species to go extinct.

Answer 14

The earth has gone through about 5 mass extinctions in its existence. Each time organisms were wiped out and another group eventually took their place. After the dinosaurs came the mammals.

There have been many hypotheses about "how" the dinosaurs were all killed off. Alot of people think it was because of a massive asteroid hitting the planet near the Yucatan peninsula. Others however believe that a flood, or ice age killed of the creatures.

There is a little back story for you.

http://web.ukonline.co.uk/a.buckley/dino...

This site talks alot about the comet idea

Answer 15

Regardless of somebody's incorrect assertion that crocodiles are dinosaurs, they are not, some dinos did survive.  Birds are dinos by descent.  As far as is known, birds were the only dino survivors.

Most dinosaurs didn't go extinct 65 million years ago.  They'd already died at various times during the preceding 170 million years.  Probably, non-bird dino diversity was nevertheless still about as high as it'd ever been, and those lineages seem to have gone extinct at much the same time, at least in North America.  The fossil record of that age elsewhere happens to be less complete for land critters but, up to now, no secure post-Cretaceous non-bird dinos have been identified anywhere.

The causes of the extinction event(s) are still debatable, and probably always will be.  At least a contribution was made by the impact of a ten km diameter meteorite, the crater of which remains available off the Yucatan peninsula of Mexico.  Some contend that catastrophe alone was enough to cause the extinction(s).  Others, however, point to further possibilities such as climate change, oceanic current flows being disrupted by the configuration of the continents, and a large bout of volcanic activity in India, as evidenced by lava flows known as the Deccan Traps.

Update

<<They are not extinct. They have just adapted to their new environments. Alligators, monitor lizards, horned frogs and many other reptiles are direct descentants of the dinosaurs.>>

Disregard that list.  It's simply garbage.  Good grief, frogs aren't even reptiles!  The only living descendants of dinos, despite uninformed assertions to the contrary, are birds.  Uninformed assertions will not change that reality, and are best avoided.

Answer 16

They are not extinct.  They have just adapted to their new environments.  Alligators, monitor lizards, horned frogs and many other reptiles are direct descentants of the dinosaurs.  Then there are claims of people seeing creatures that are described to look a lot like plesiosaurs in places like Loch Ness and other places around the world.

Answer 17

If a meteor hit the earth, then how come alligators came from them? Wouldn't everything have been destroyed? How could descendants come from them? Some genetic mutation? In my words, that's rubbish.

Answer 18

Its a general misconception that they went extinct all together. There were many mass extinctions which different species died in, the final one being the famous meteor crash.

Answer 19

I was going to point out the link between alligators and dinosaurs, but another poster already took care of that.  

Obviously whatever killed the dinosaurs, did not wipe off all life on our planet.  One very widely accepted theory is that a large object from space hit the earth, caused so much debris in the air that it blocked the sun, killing all of the plants.  Without plants, the food chain disintegrated, and most animals in the chain perished because of it.