Yes and no: It depends on how you classify animals. There are two main classification systems – the Linnaean system which groups organisms by characteristics and the phylogenetics system, which ...

When temperatures drop, so do the invasive green reptiles. Here’s everything you need to know about cold-stunned iguanas.

Add Yahoo as a preferred source to see more of our stories on Google. Where they lived: Dinosaur fossils have been found on every continent, including Antarctica. What they ate: Some ate plants, while ...

Millions of years ago, dinosaurs ruled the Earth with incredible adaptations that helped them survive. When they disappeared, many of their special features didn't vanish completely. Modern reptiles ...

Yale University ecologists reveal a lizard lineage that rode out the dinosaur-killing asteroid event with unexpected evolutionary survival traits. Night lizards (family Xantusiidae) survived the ...

Until now, estimating how old a dinosaur was when it died has been a fairly simple process: Count up the growth rings in the ...

An extinct reptile that lived among the dinosaurs 150 million years ago has been unearthed in the badlands of Wyoming. The tiny creature sheds light on New Zealand's Tuatara, the last living member of ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Dinosaur Mysteries digs into the secretive side of the “terrible ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Dinosaur Mysteries digs into the secretive side of the “terrible ...

A reanalysis by UC Davis paleontologists challenges the conclusions of a study published last year that assessed metabolic rates of dinosaurs based on traces of biomolecules from fossils. Monitor ...

Three U.S. zoos, in New York, Chicago and San Diego, will soon have live reptiles that were already old-fashioned when the dinosaurs were still young. Tuataras (Sphenodon punctatus), which look like ...

Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 ...