How life on land learned to breathe

Scientists from the Museum für Naturkunde Berlin, together with collaborators from South Africa and the USA, have revealed a new chapter in the history of the mammalian breastbone. Their study of a 260-million-year-old fossil shows that its breastbone was divided into a series of segments, like that of modern mammals. This discovery indicates that prerequisites of the mammalian way of walking and breathing were already present in some distantly related Permian ancestors.

Quelle: IDW Informationsdienst Wissenschaft