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NEETZoologyEvolution

What is believed to have happened to most of the dinosaurs around 65 million years ago?

Options

  1. AThey evolved into birds
  2. BThey adapted to colder climates
  3. CThey migrated to new continents
  4. DThey became extinct due to climatic changes

Correct answer

A. They evolved into birds

Step-by-step solution

There are no specimens of these left with us. However, these were ancestors of modern day frogs and salamanders. The amphibians evolved into reptiles. They lay thick- shelled eggs which do not dry up in sun unlike those of amphibians. Again we only see their modern day descendents, the turtles, tortoises and crocodiles. Giant ferns (pteridophytes) were present but they all fell to form coal deposits slowly. Some of these land reptiles went back into water to evolve into fish-like reptiles, probably 200 mya (e.g. Ic

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