Creatures that bridged the gap between reptiles and mammals may have been bearing live young 90 million years earlier than we thought. One of the hallmarks of all mammals apart from monotremes – ...

Reconstructed Triassic landscape at the Museum am Löwentor, Stuttgart (Germany), with Chiniquodon theotonicus (formerly also known as Belesodon magnificus; left), Batrachotomus kupferzellensis (right) ...

Monotremes are mammals that lay eggs and do not carry their young in a womb. They include species like the platypus and echidnas. Egg-laying monotremes may have retained certain traits from their ...