The researchers extended their analysis to eight exemplary fossil species from four continents spanning 300 million years of evolution. The species ranged from the 35g proto-mammal Megazostrodon ...

Two new studies offer insights into the evolution and development of external ears, which appear in humans and other mammals ...

Some ancient traits were lost and had a major influence on mammal evolution. One of the significant losses among mammal ...

We have been researching the evolution of primate litter size — how many babies grow during each pregnancy — for the past several years. To study mammal evolution and reproductive life history ...

Darwin wasn't the only scientist who thought females couldn't be promiscuous. Angus John Bateman had very similar ideas.

Scientists have traced the evolutionary origin of humans' outer ears to the gills of ancient fish through a series of ...

The chance discovery of a long-forgotten tray of fossils in the collections of the Australian Museum has highlighted a previously unknown “Age of Monotremes” that thrived while dinosaurs ruled the ...

Earth's climate changed dramatically during the Late Pleistocene and Early Holocene 130,000 to 7,000 years ago, when cold ...

Faced with an evolving group of competing organisms -- the mammals -- perhaps dinosaurs were driven to extinction by competition. Packs of small mammals would have competed with dinosaurs for food.