Why do people think dinosaurs went extinct?

A big meteorite crashed into Earth, changing the climatic conditions so dramatically that dinosaurs could not survive. Ash and gas spewing from volcanoes suffocated many of the dinosaurs. Diseases wiped out entire populations of dinosaurs. Food chain imbalances lead to the starvation of the dinosaurs.

What do we believe killed the dinosaurs?

For decades, the prevailing theory about the extinction of the dinosaurs was that an asteroid from the belt between Mars and Jupiter slammed into the planet, causing cataclysmic devastation that wiped out most life on the planet. The gravity from Jupiter pulled the comet into the solar system.

How did dinosaurs become extinct but not humans?

Around 66 million years ago, at the end of the Cretaceous period, an asteroid struck the Earth, triggering a mass extinction that killed off the dinosaurs and some 75\% of all species. Somehow mammals survived, thrived, and became dominant across the planet.

What are four theories to why dinosaurs went extinct?

toxic volcanic gases and dust. asteroid impact. food shortage. climate change.

Why did dinosaurs become extinct Quora?

It seems that dinosaurs went extinct because of the impact of a comet or asteroid on the Earth. Dust blocked out the sun for a time, making survival harder, and plants were destroyed by fires. Plant eaters couldn’t get enough food, so they died. Meat eaters couldn’t get enough plant eaters, so they died.

What may be the reason for the extinction of dinosaurs if you know the reasons for their extinction why sparrows are listed as endangered species?

Common sparrows are going extinct because of mindless urbanisation. They are losing not just their natural habitats but also the essential human touch they need and thrive upon. The indifference caused by a lack of emotional connect has pushed these birds to the edge of extinction.

Why did they change dinosaur names?

Despite being one of the most famous dinosaur names on the planet – the name Brontosaurus has not actually been used by experts for over 100 years. Back in 1903, scientists decided that the dinosaur that was known as Brontosaurus was too similar – because of it’s long neck -to another species called the Apatosaurus.

Is Apatosaurus real?

In 1877 Marsh named Apatosaurus ajax, a long-necked and long-tailed dinosaur found in the Morrison Formation in Colorado, USA. Two years later, another sauropod skeleton was named from the same formation but in Wyoming. This dinosaur was fairly complete and larger than the earlier Apatosaurus.