As human civilization drives more animals to extinction, extreme sizes will likely become the new norm.
We have the whole dinosaur extinction thing figured out, right? A big rock smashed into Earth and wiped them all out. But an NYU geophysicist wonders what sent the rock Earth's way in the first place and pins the deadly event on a novel culprit.
Dominant species spread across the globe are just as vulnerable during a mass extinction event as more fragile ones confined to a single locale.
A quick warming of the Earth about 60,000 to 12,000 years ago drove large animals like the wooly mammoth into extinction, says a new study.
The sixth mass extinction on Earth is upon us, confirms an extensive new study. Here are just a handful of its victims.
The meteorite that killed off the dinosaurs 66 million years took a toll on evergreen trees.
Some scientists are arguing that humans today are wiping out animal species at a rate that matches up with past mass die-offs. Is the end nigh? Laci Green has the details.
Venezuela's first-known dinosaur provides some of the earliest evidence that at least some dinosaurs lived in herds.
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