The Mesozoic era, often referred to as the "Age of Reptiles," was also a significant period for mammalian evolution. During this time, mammals began to diversify and adapt to various ecological ...

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

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

The best example we have of evolution at a specific hot spot is ... to be selection against excessive crossing over, why are mammalian species so variable in their numbers of chromosomes and ...

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

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 ...

All living mammals today, including us, descend from the one line that survived. During the next 145 million years of evolution, the dominance of dinosaurs ensured that our distant mammalian ...

The genes that build the cartilage of fish gills were repurposed to build the cartilage in mammals’ outer ears ...

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 ...

The typical rate of extinction differs for different groups of organisms. Mammals, for instance, have an average species "lifespan" from origination to extinction of about 1 million years ...

As a master’s student at Indiana University a few years ago, David Grossnickle became fascinated with the evolution of early mammals. His dissertation project involved comparing the skulls of modern ...