A newly described dinosaur that appears to have persisted beyond a catastrophic die-off is forcing scientists to rethink how mass extinctions actually play out on the ground. Instead of a clean break ...

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There was definitely a mass extinction event 65 million years ago (probably related to a giant asteroid that smashed into Mexico’s Yucatán Peninsula), and it did spell the end for most dinosaur ...

Scientists are increasingly worried we may be witnessing the start of the “sixth mass extinction” – the first to be caused by ...

This is read by an automated voice. Please report any issues or inconsistencies here. Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million ...

Dinosaurs appear to have been thriving before a giant asteroid hit the Earth 66 million years ago, paleontologists working in New Mexico said Thursday in the journal Science. Experts have long debated ...

Learn more about what fossilized teeth can tell us about the rise of mammals after the extinction of dinosaurs.

Scientists say the "unique" fossil find shows they were in fact blooming 10 million years before dinosaurs were wiped out.

Scientists have confirmed that Nanotyrannus was a mature species, not a young T. rex. A microscopic look at its hyoid bone provided the key evidence, matching growth signals seen in known T. rex ...

Dinosaur Institute researcher shows throat bones accurately record maturity in dinosaurs, establishing Nanotyrannus was a fully grown, entirely distinct species from T. rex “The identity of the ...