Many birds died with the dinosaurs

This video from Canada is called Diving Birds in the Prairies: Late Cretaceous Hesperornithiformes.

From the BBC today:

Many early bird species suffered from the same catastrophic extinction as the dinosaurs, new research has shown.

The meteorite impact that coincided with the disappearance of the dinosaurs 65 million years ago, also saw a rapid decline in primitive bird species.

Only a few bird groups survived through the mass extinction, from which all modern birds are descended.

Researchers at Yale University have published their findings in PNAS this week.

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