An extremely well preserved fossil feather could reveal why some birds survived the dinosaur-killing asteroid, and others did not.<br><br>
Paleontology can be quite physical.
In 2016, David DeMar was doing field work in the rocky badlands of Montana in what's known as the Hell Creek Formation.
"We all get down on our hands and knees,"… [+5755 chars]
In 2016, David DeMar was doing field work in the rocky badlands of Montana in what's known as the Hell Creek Formation.
"We all get down on our hands and knees,"… [+5755 chars]