Male dinosaurs may not have had a caring side after all.
Five years ago, a study of theropod dinosaurs concluded that it was male dinosaurs that incubated the eggs of their offspring. Now a new analysis of the same data is challenging that finding.
It is notoriously difficult to work out how long-extinct animals behaved, but a few fossils found in recent decades show clearly that some Mesozoic theropods, a bipedal group of carnivorous dinosaurs, made — and sat on — nests, apparently in the same way that birds do today.