Paleontologists have long puzzled over how the dinosaurs—originally relatively small and of minor importance to the broader ecosystem—evolved to become the dominant species some 30 million years later ...

Mass extinctions are extremely catastrophic events on Earth. Throughout Earth's evolutionary history, numerous mass ...

The earliest known dinosaur fossils are at least 230 million years old, and by 200 million years ago, dinosaurs dominated global ecosystems. Reconstructing food webs using fossil evidence of feeding ...