https://www.newscientist.com/article/2183923-neanderthals-may-have-powered-their-bigger-bodies-by-breathing-deeper/

We now know a huge amount about Neanderthals – we’ve even gained some insights into their sex lives – but there are still gaps in our understanding.

The precise shape of the Neanderthal chest (or thorax) is one of those gaps, says Asier Gómez-Olivencia at the University of the Basque Country, Spain. “Ribs and vertebrae are fragile and have a limited fossil record,” he says.