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No one knows for sure, but there is a good chance that the dinosaur extinction came about as a result of a very large meteor strike on Earth. Such a strike would have filled the air around Earth with dust, blocking a lot of sunlight. Without enough sunlight, plants would die back, causing many dinosaurs to starve. (They needed tons and tons of plant material a day to eat.)
With a scarcity of plant-eating dinosaurs, the meat-eating dinosaurs in turn starved to death. Little animals that did not eat much mostly have survived.
What else can I help you with?
How did the Tyrannosaurs become extinct?
It is generally accepted that all the dinosaurs (apart form the birds) became extinct as a result of an astrobleme event.
Did dinosaurs become extinct AD or BC?
B.CAnswer:Although the majority of dinosaurs died out about 70 million years ago, the present day birds are evolved from theropods and are direct descendants of the dinosaurs. In that manner dinosaurs have not become extinct.
Why are dinosaurs endangered?
dinosaurs are extinct not endangered
What living things happen in the Cretaceous period Did turtles and crocodiles become extinct .?
No, turtles,crocodiles, snakes and some plants survived the extinction event that wiped out the dinosaurs.
What will effect a penguins habitat?
Dinosaurs love to eat penguins. In the unfortunate event of the resurrection of dinosaurs, penguins will most likely go extinct.
Why did the thylacoleo become extinct?
the thylacoleo became extinct because of whop whop whop!!! lol lol lol
When did dinosaur's go extinct?
Dinosaurs became extinct 65 million years ago, at the end of the Cretaceous period.
Dinosaurs died in what geological period?
Dinosaurs died in the Cretaceous, Jurassic, and Triassic periods, but became extinct at the end of the Cretaceous.
Is this a valid hypotheses - dinosaurs became extinct because mammals ate all the dinosaur eggs?
Not likely, while it could be a plausible explanation if it had just been the dinosaurs that went extinct it could work. However, the event that killed off the dinosaurs also killed of a variety of other organisms both on land and in the ocean, where mammals had not yet established themselves. A hypothesis that explains the extinction of the dinosaurs, but not the other life forms that died out in the same event, is incomplete.
What survived the extinction event of the dinosaurs-?
Avian dinosaurs survived the extinction event of the dinosaurs.
Why did dinosaure finished to exist?
Dinosaurs existed because a group of archosaurs evolved to have legs directly underneath the body, a defining trait of the dinosaurs. They may have become so diverse because at the end of the Triassic, a mass extinction opened up many niches, and dinosaurs were able to evolve quickly enough to fill them. Modern birds later evolved from dinosaurs.
What percentage of the then existing species went extinct as a result of the KT boundary event?
75 percent of plants, animals and microbes.
