The strange tale of the lizard`s breath

Air flows through lizard lungs in one direction, a finding that may prompt a rethink about how some species evolved following Earth`s biggest mass extinction, a study said on Wednesday.

World`s oldest prehistoric toilet unearthed in Argentina

Scientists have discovered thousands of fossilised poos left by rhino-like megaherbivores, 240 million years ago in Argentina, suggesting that ancient reptiles gathered together to defecate.