LiveScience.com - About 100 million years ago, Triceratops likely engaged in horn-to-horn battles with its kin, according to a new analysis of the scrapes, bruises and healing fractures preserved on fossils of the dinosaurs’ bony headgear.

AP - Who loves Lucy? Far fewer people than a Seattle science center hoped when officials paid millions to show the fossil remains of one of the earliest known human ancestors.

How did the dinosaur Triceratops use its three horns? The horns and frills of horned dinosaurs were not just for looks. Battle scars on the skulls of Triceratops preserve rare evidence of Cretaceous-era combat.

Scientists’ knowledge of the evolution of dinosaurs is remarkably complete. Evolutionary biologists use two ways to study the evolution of prehistoric plants and animals: firstly they use radioactive dating techniques to put fossils in chronological order according to the age of the rocks in which they are found (stratigraphy); secondly they observe and classify the characteristics of fossilised remains according to their relatedness (morphology).

In October 2006, a respected amateur palaeontologist, Nathan L. Murphy, took a large rock containing the well-preserved bones of a new species of dinosaur to be X-rayed at the Dinosaur Field Station

Fossils uncovered recently in the Arctic support the idea that dinosaurs died off rapidly - perhaps as the result of a massive meteor hitting Earth

The new species, called Anchiornis huxleyi , was discovered in the ashes of volcanoes that were active during the Jurassic and Cretaceous (144 to 65 million years ago) periods in what is now north-eastern China

This exhibit features a rare and exciting look at the life of dinosaurs, through their eggs, nests, and embryos

Nizar Ibrahim , a 26-year-old doctorate student at UCD, is celebrating after the massive fossil arrived safely in Ireland yesterday after a five-day journey from North Africa over seas, mountains and through snow storms

Einstein – so named ironically, for his very small brain cavity – has been a fixture at the airport since July, when he arrived, like so many here, on an Etihad flight