Simulations calculated Tyrannosaurus speed from the motion of its swaying tail, finding that the massive dinosaur was a ...

Anyway, the story explains that paleontologists since the 1940s have classified a certain fossil, Nanotyrannus, as a juvenile T-rex. The article termed it a “teenage Tyrannosaurus rex,” which made me ...

A giant marine predator, once believed to roam only the seas, may have also inhabited ancient rivers 66 million years ago.

Mosasaurs, giant marine reptiles that existed more than 66 million years ago, lived not only in the sea but also in rivers.

Each week, SPIN digs into the catalogs of great artists and highlights songs you might not know for our Deep Cut Friday ...

A team of researchers has discovered 16,600 footprints belonging to theropods — the dinosaur group that includes the ...

Paleontologists counted the record-setting tracks and uncovered evidence of dinosaurs swimming and dragging their tails along what was a muddy superhighway for the animals millions of years ago ...

New research has overturned decades of uncertainty by showing that Nanotyrannus was a fully grown predator, not a juvenile T. rex.

Tyrannosaurus rex or T-rex has become one of the most popular dinosaurs in popular culture. Since Steven Spielberg's ...

Was Nanotyrannus a bona fide species or just a teenage Tyrannosaurus rex with a lot more growing to do? Scientists have settled that debate.

Scientists have confirmed that Nanotyrannus was a mature species, not a young T. rex. A microscopic look at its hyoid bone ...