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View synonyms for birds

birds

  1. A class of vertebrates distinguished by their feathers and their two legs and two wings. Birds are warm-blooded animals , and their young hatch from eggs .


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Notes

Some scientists argue that modern birds are descended from the dinosaurs .
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Example Sentences

A fossil discovery could transform the understanding of how the brains and intelligence of modern birds have evolved.

From BBC

The fossil filled a 70-million-year gap in the understanding of how the brains of birds evolved: between the 150-million-year-old Archaeopteryx, the earliest known bird-like dinosaur, and birds living today.

From BBC

However, most areas of its brain were less developed, suggesting that it had not yet evolved the complex flight-control mechanisms of modern birds.

From BBC

Professor Daniel Field from Cambridge’s Department of Earth Sciences, who was the senior author of the research, said modern birds, like crows and parrots, had some of the most advanced cognitive capabilities in the animal kingdom.

From BBC

He said scientists had struggled to understand how and when the unique brains and remarkable intelligence of birds evolved.

From BBC

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bird ringbird's beak