Posted: Aug 05, 2019 3:54 pm
by Macdoc
Birds had to relearn flight after meteor wiped out dinosaurs
Image
Fossil records suggest only flightless birds survived when T rex was wiped off the Earth

Birds had to rediscover flight after the meteor strike that killed off the dinosaurs, scientists say.

The cataclysm 66m years ago not only wiped out Tyrannosaurus rex and ground-dwelling dinosaur species, but also flying birds, a detailed survey of the fossil record suggests.

As forests burned around the world, the only birds to survive were flightless emu-like species that lived on the ground.


https://www.theguardian.com/environment ... -dinosaurs

paper
https://www.cell.com/current-biology/fu ... 60-9822(18)30534-7