How Birds Survived the Asteroid
Written by Bob Sundstrom
That is BirdNote.
[Southern Cassowary growl, ML 203983681, 0:13-0:17]
The asteroid that struck the Yucatán 66 million years in the past wreaked worldwide ecological injury. It spelled the tip of most dinosaurs and different animals and destroyed the world’s forests.
But just a few bird-like dinosaur teams made it via. Scientists consider all these teams have been ground-dwellers. Most might fly, however being largely terrestrial was a key survival benefit within the absence of timber.
Which means that of the 11,000 species of birds that fly the skies, glide over the oceans, and flit among the many branches at this time, all descended from these historic ground-dwelling bird-like creatures.
[Black-capped Chickadee, ML 202239, 0:08-0:09]
[Eastern Screech-Owl, ML 168804731, 0:04-0:06]
[Laughing Gull, ML 174834841, 0:02-0:04]
The mass extinction totally modified life on earth. However as one world ended, one other unfolded. A substantial amount of the world’s current range of life emerged following the catastrophic occasions of 66 million years in the past. And many various teams of birds developed to reclaim a life within the timber. The birds round us at this time reside proof of nature’s resiliency.
[American Robin song, ML346399001, 1:07-1:10]
For BirdNote, I’m Michael Stein.
Senior Producer: John Kessler
Content material Director: Allison Wilson
Producer: Mark Bramhill
Affiliate Producer: Ellen Blackstone
Managing Producer: Conor Gearin
Bird sounds offered by The Macaulay Library of Pure Sounds on the Cornell Lab of Ornithology, Ithaca, New York. Southern Cassowary ML 203983681 recorded by P. Gregory, Black-capped Chickadee ML 202239 recorded by J. McGowan, Japanese Screech-Owl ML 168804731 recorded by W. Hershberger, Laughing Gull ML 174834841 recorded by L. DeMarco, and American Robin ML 346399001 recorded by J. Woods.
BirdNote’s theme was composed and performed by Nancy Rumbel and John Kessler.
© 2021 BirdNote December 2021 Narrator: Michael Stein
ID# asteroid-01-2021-12-21 asteroid-01