Natural selection is usually understood in the context of change. When organisms deviate from the norm, they may gain advantages that let their lineages outlast those of their less-adaptable relatives ...

Natural selection is the process by which some organisms in a population survive and reproduce, while others do not, based on their bodies and behaviour. It is one of the processes by which species ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Density-dependent natural selection arises when the fitness of individuals varies according to the number of conspecifics sharing limited resources. In Drosophila, larval crowding has been a classic ...

Population genetics investigates how genetic variation is distributed and changes within and between populations under the combined influence of evolutionary forces. Central to this field are genetic ...

Scientists have identified a new member on the genetic family tree of an endangered pupfish native to south-central New Mexico. "We went into this thinking that there was one species of conservation ...

NASA had a big – and little – problem. For a small satellite, the agency needed a tiny antenna, with very specific communication capabilities and very strict limits on size and weight. The agency gave ...

For well over a century, Darwin’s theory of natural selection has served as biology’s grand unifying framework, explaining how species adapt and evolve through the differential replication of randomly ...