Paleontologists studying a 236-million-year-old cynodont fossil from Argentina say they have found the earliest evidence yet of viviparity (live birth)...
New research from the University of Bristol provides evidence that many mammals were already shifting toward a more ground-based lifestyle leading up to...
Australian Museum’s Professor Tim Flannery and colleagues argue that the ancestors of Theria (placental and marsupial mammals) evolved in the supercontinent...
Monotremes (egg-laying mammals) are the only extant mammalian outgroup to therians (marsupial and eutherian animals) and provide key insights into mammalian...