A Cretaceous-age, crow-sized bird from Madagascar would have sliced its way through the air wielding a large, blade-like beak and offers important new insights on the evolution of face and beak shape in the Mesozoic forerunners of modern birds.
The observed increase of body size in ungulates during the 20 million years before the Pleistocene is driven by the process of species selection, according to researchers from the Senckenberg, Germany.