Nanotyrannus lethaeus was a fast, agile predator distinct from T. rex, with longer legs, stronger arms and a body built for ...

When you look at a fossil on display, you may envision the world 66 million years ago. You might feel the earth shake beneath ...

Scientists have proven Nanotyrannus was its own species, reshaping what we know about the predators that lived alongside T. rex. What if our understanding of T. rex growth has been wrong all along? A ...

What we knew as a “teenage dinosaur” of the T. Rex family was actually a completely different and adult species. Apparently, ...

A groundbreaking analysis of the ‘Dueling Dinosaurs’ fossil has finally resolved a long-standing mystery in the world of ...

At the twilight of the age of dinosaurs, an agile and vicious predator named Nanotyrannus prowled western North America, ...

A Montana fossil dubbed Dueling Dinosaurs ended a decades-old debate over whether a 'pygmy tyrant' was real or just a teen T. rex.

Growth rings in fossilized bones suggest the diminutive dinosaur, Nanotyrannus, would never grow up to become a T. rex — plus ...

A Montana fossil reveals that Nanotyrannus, once thought to be a young T. rex, was actually a full-grown predator and it's ...

Learn how the fossils of ancient organisms help scientists navigate deep time — and uncover Earth’s hidden history.

The Natural History Museum has launched its 2025 Christmas jumper collection, which also extends to dogs, with the help of ...

Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type ...