At up to 10 meters long and weighing in at four to five tons, this Tyrannosaurus rex-like beast could have been the biggest predator to ever roam Europe and among the largest dinosaurs to walk Earth during the late Jurassic period.

Scientists in Portugal have identified what they think may have been the largest predator ever to roam across the European landmass.

Dinosaurs pooped. The fossil record makes that abundantly clear. Scores of coprolites – fossilized feces – not only allow paleontologists to better understand the diet and ecology of dinosaurs, but let educators pass the mineralized excrement around to students and knowingly ask “Do you know what you’re holding right now?” in the hope of a shocked reaction. But did dinosaurs ever pee?

A color explosion happened around 150 million years ago, resulting in dinosaurs sporting a multitude of hues.

Paleontologists from the United States and China have described a new large plant-eating dinosaur that lived in what is now northwestern China during the early Cretaceous, about 100 million years ago.

Scientists say the fossils of an ancient "swamp monster" that roamed the wilds of West Texas are those of a new species. Two crocodile-like reptiles called phytosaurs died about 205 million years ago in an oxbow lake, where they were entombed for centuries.

We recently had the opportunity to sit down and talk to the gifted visual artist Giovanni Longo. His impressive work sees him using reclaimed wood to recreate skeletal forms, weakened by time. They...

An extremely well preserved fossil of a baby dinosaur appears to hop out of the rock in which it was fossilized.

The controversial discovery of 68-million-year-old soft tissue from the bones of a Tyrannosaurus rex finally has a physical explanation. According to new research, iron in the dinosaur's body preserved the tissue before it could decay.

A gigantic "communal latrine" created at the dawn of the dinosaurs has been unearthed in Argentina. Thousands of fossilised poos left by rhino-like megaherbivores were found clustered together, scientists say.

An extremely well-preserved baby dinosaur skeleton has been discovered in Dinosaur Provincial Park in Alberta.

It lived about 100 million years ago, weighed four tons and likely was at the very top of its prehistoric food chain. Researchers from Chicago's Field Museum, the North Carolina Museum of Natural Sciences and North Carolina State University announced Friday the discovery of Siats meekerorum, a dinosaur that stretched more than 30 feet long, in eastern Utah.

Two dinosaurs thought to have been locked in combat when they died are to be auctioned in New York next week. Thomas Lindgren, of auction house Bonhams described the pair as being "so important to science because of the fact they were found in a context that appears to be they killed each other."

Although it has long been debated whether the proto-bird Archaeopteryx was able to actually fly or merely evolving toward that ability, to date nobody had yet seriously suggested that it could have been instead in the midst of losing its ability to fly. But that is precisely what Michael Habib, a biologist at the University of Southern California proposed last week to a packed hall at the annual meeting of the Society of Vertebrate Paleontology in Los Angeles.

A newly discovered "King of Gore" tyrannosaur pushes back the origins of T. rex's terrifying family tree to at least 80 million years ago, report paleontologists.

A recent discovery in Australia proves that there were birds living alongside other kinds of dinosaurs on the continent 100 million years ago. Australia’s oldest bird footprints, from the Early Cretaceous period, were found in a slab of rock recovered from the cliffs of Dinosaur Cove, a fossil-rich area on the coast of southern Victoria near Melbourne. The finding of the ancient bird tracks helps paleontologists better understand Australia’s prehistoric timeline.

Even one of the best known dinosaurs has kept some secrets. Here is what palaeontologists most want to know about the famous tyrant.

If oil is made from dinosaurs...

It's like a scene out of a Flintstones comic. Fred is running a backhoe and drops its shovel right on top of a dinosaur's tail. It happened in Canada this week when the backhoe laid bare an extremely rare find, the fossil of a dinosaur millions of years old.