A pivotal wrist bone in birds appears earlier in theropods. This could shift views on how flight evolved. An analysis of two ...

Gross Anatomy is the study of the larger structures of the body, those visible without the aid of magnification. A gross anatomy lab, also known as an anatomical or human dissection lab, is a ...

Called osteoderms, the chain mail-like plates may have helped some species adapt to Australia’s harsh environment ...