This broad pattern has suggested that "younger" groups of organisms, in evolutionary terms, have higher rates of speciation, extinction and body size evolution, among other differences from older ...

Some scientists don’t consider this event a mass extinction event based on analyses suggesting the biodiversity trend was driven more by a decrease in speciation rates than by an increase in ...

This article addresses central themes in the study of tropical biodiversity, exploring the roles that speciation, extinction, and dispersal play in the formation of regional assemblages.

Extinction has a role in evolution as some species disappear. Others survive and continue to evolve. A species may also become extinct through speciation. The fossil record shows that many species ...

Burbrink, F. T. & Pyron, R. A. How does ecological opportunity influence rates of speciation, extinction, and morphological diversification in new world ratsnakes (tribe Lampropeltini)?

Despite this, we know relatively little about how hybridization varies phylogenetically, and how it influences rates of speciation and extinction. My research seeks to understand the role of ...