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What factor do scientists believed caused the drop in temperature to lead to dinosaurs disappearance?
Wiki User
∙ 11y ago
A mass impact threw dust into the atmosphere; this "shaded" the Earth from the Sun's warming rays.
Wiki User
∙ 11y ago
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If birds are a form of dinosaur why don't they have teeth?
it was not all of the dinosaurs whitch had teeth. The scientists believed that somehow, the dinosaurs, like the Troodon and Velociraptor, were able to turn into birds during time to survive. Somehow there was a wishbone in one of the Troodon's! Scientists are still disputing about this, but it is all in the form of evolution. But not ALL of the dinos had teeth.
What animal was alive first bats or dinosaurs?
It is believed that dinosaurs came before bats.
What animal is believed to be the first to appear on land?
Dinosaurs
Did dinosaurs live in Portland?
yes, that is where most of them are believed to have come from
Can sharks eat dinosaurs?
No, sharks are fish and dinosaurs were reptiles.
What a sentence for extinction?
It is believed that a meteor strike led to the extinction of dinosaurs
What dinosaurs traveled in packs?
There were many types of dinosaurs who are believed to have traveled in packs or herd. Some of them include the Styracosaurus, Protoceratops, and the Triceratops.
Scientists once believed that modern?
wtrrwetrew
Why are there no dinosaurs left?
Technically there are dinosaurs still around. Most paleontologists now classify birds as dinosaurs. Other than that, the dinosaurs are believed to have been wiped out by an asteroid or comet impact 65.5 million years ago.
What dinosaurs did micro raptors prey on?
Microraptor is believed to have preyed on small mammals and birds.
How did the dinosaurs die out?
Sixty-six million years ago, dinosaurs had the ultimate bad day. With a devastating asteroid impact, a reign that had lasted 180 million years was abruptly ended. Prof Paul Barrett, a dinosaur researcher at the Museum, explains what is thought to have happened the day the dinosaurs died.
What are ornothischian dinosaurs?
They were cretaceous period dinosaurs that are believed to be the ancestors of modern birds.They had semi hollow bones and later in the period even developed the first feathers on the planet.
