Scientists find that it may have been more than an asteroid that killed off species in North America while dinosaurs roamed the earth. It may have also been caused by the unstable food webs of the time period.
Here’s Katie Copple with the story.
Here’s Katie Copple with the story.
For more information, find the story at PNAS.org
Pretty good, Jianna. After the lead introduce the food angle, then get to how they came to this conclusion. Are they suggesting the dinos starved?