The most successful terrestrial vertebrates that invaded the air are

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While insects were the first animals to evolve flight, birds have become the most successful vertebrates to inhabit the air. They have diversified into over 10,000 species and occupy a wide range of niches across the globe. Pterosaurs were a group of reptiles that also evolved flight, but went extinct with the dinosaurs. Bats are the only mammals capable of sustained flight, but are much less diverse than birds. Flying monkeys are a fictional creation and do not exist in real life.

The Most Successful Terrestrial Vertebrates That Invaded the Air Are