How life on land learned to breathe - Phys.org

Scientists from the Museum für Naturkunde Berlin, together with collaborators from South Africa and the U.S., 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 di…

(a) Partial skeletal reconstruction of Gorgonops torvus in lateral aspect and (b) schematic reconstruction of the pectoral girdle, sternum, interclavicle and humerus with hypothetical position of m. … [+3560 chars]

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