Pregnant T. rex could aid in dino sex-typing

A pregnant Tyrannosaurus rex that roamed Montana 68 million years ago may be the key to discerning gender differences between theropod, or meat-eating dinosaur, species. Researchers from North Carolina State University and ...

It's a Tyrannosaur-eat-Tyrannosaur world

A nasty little 66-million-year-old family secret has been leaked by a recently unearthed tyrannosaur bone. The bone has peculiar teeth marks that strongly suggest it was gnawed by another tyrannosaur. The find could be some ...

Five bizarre fossil discoveries that got scientists excited

From trilobites to tyrannosaurs, most fossils are of creatures with hard shells or bones. These materials don't easily biodegrade and sediment has time to build up around them and turn them into a record of the creature that ...

Scientists downsize the giant 'Dreadnoughtus' dinosaur

Scientists at the University of Liverpool have shown that the most complete giant sauropod dinosaur, Dreadnoughtus, discovered by palaeontologists in South America in 2014, was not as large as previously thought.

Scientists out for dinosaur blood

Scientists said Tuesday they have discovered what appear to be red blood cells and collagen fibres in dinosaur bones, a find that may boost prospects of prising organic remains from a much wider range of fossils.

The curse of the horned dinosaur egg

Horned dinosaurs (ceratopsians) just can't catch a break when it comes to their fossilized eggs. The first purported examples turned up in Mongolia during the 1920s, attributed to Protoceratops. A few unlucky "Protoceratops" ...

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