A newly discovered, carnivorous lizard ostensibly represents what most casual onlookers would perhaps perceive to be a ...

A newly discovered carnivorous reptile that lived before the rise of dinosaurs has been identified in southern Brazil. Named ...

Scientists have identified a new crocodile precursor that looked deceptively dinosaur-like and hunted with speed and ...

Scientists in Argentina discovered the oldest known long-necked dinosaur, Huayracursor jaguensis, revealing a much earlier ...

Teaching faculty in the University of Wisconsin Integrative Biology Department Scott Hartman spoke on how thermal modeling is an effective tool for predicting the End-Triassic Extinction period Sept.

In a review, published today in the journal Frontiers in Earth Science, scientists reveal that predators became meaner and prey animals adapted rapidly to find new ways to survive. On land, the ...

Ancient animals were walking around on bird-like feet over 210 million years ago, according to a new study. Ancient animals were walking around on bird-like feet over 210 million years ago, according ...

Three-toed fossil footprints that date back more than 210 million years were pressed into soft mud by bipedal reptiles with feet like a bird’s, a new analysis of the tracks has revealed. The ...

Changes in inner ear canal morphology over time suggest that mammalian ancestors called mammaliamorphs evolved warm-bloodedness around 233 million years ago during the late Triassic period, according ...

Dinosaurs are among the most iconic creatures to have roamed the Earth, and today they hold a special place in the popular imagination. But what were the earliest ones to appear on the planet?

Locked within the stones and fossils of Petrified Forest National Park lies a record of life, death, and resilience during one of Earth's most extreme periods of environmental change. What secrets do ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Three-toed fossil ...