3 ms·
From all indications flying birds went extinct at the K-T boundary and later flight re-evolved from ground dwelling birds. https://en.wikipedia.org/wiki/Enanti
by throwaway2048 5y ago
From all indications flying birds went extinct at the K-T boundary and later flight re-evolved from ground dwelling birds.
https://en.wikipedia.org/wiki/Enantiornithes https://en.wikipedia.org/wiki/Enantiornithes
https://www.youtube.com/watch?v=QGR5yOrChMA https://www.youtube.com/watch?v=QGR5yOrChMA