Dinosaur cold-blood theory in doubt

27th June, 2012

Lines of arrested growth (known as LAGS) found in the bones of reptiles and dinosaurs are bands of differing density akin to the rings in trees representing seasonal variations and have previously been inferred as evidence that dinosaurs were cold blooded.

A new study conducted at the Catalan Institute of Palaeontology has cast doubt on this hypothesis by proving that similar rings are found in mammal species too.

This is taken as further evidence that dinosaurs were not in-fact cold-blooded.

BBC