Scientists have always struggled with this riddle...however, new research is giving some clues to the answer.
You may be surprised to learn that the sabercat's bite is not as strong as the modern big cat.
Find out which specific type of dinosaur suffered from cancer.
What are prehistoric runways and why are they so important?
Were saber-toothed cats social animals compared to other social predators?
Whales must have evolved from some other larger, ancient creature, right? However, sometimes evolution takes unexpected twists.
Until very recently, humans tended to reproduce before reaching full adult maturity, as did the dinosaurs. Learn more on this Moment of Science.
Do you know how the dinosaurs went extinct? Learn more on this Moment of Science.
There is nothing more emblematic of spring and summer than flowers, but why do plants have flowers, and how did they evolve?