While malaria is the best-understood example of an infectious ... Investigating the signatures of natural selection can help elucidate the evolutionary adaptations that have allowed humans to ...

Many people are. In fact, the ability to digest lactose may be an example of adaptive evolution in the human lineage. Although the study of natural selection in humans is still in an early stage ...

Polar Bears Are Changing Their Diets Polar bears, the iconic arctic giants, are being driven to make significant dietary changes as a response to climate change. Traditionally reliant on seals hunted ...

Natural selection is a mechanism of evolution ... Wendy Cutler via Flickr (CC BY-NC 2.0) Selection for adaptation is not the only cause of evolution. For example, species change can be caused by ...

That would have stunned Darwin, who thought natural selection operated over vast ... with bigger beaks. So the adaptation to a changed environment led to a larger-beaked finch population in ...

unpredictable fray of natural selection. With two partners combining varied genes, a species has more flexibility to adapt to changing environments. There are, however, rare examples of asexual ...

Which is fortunate for me, because she has certain adaptations that I wouldn ... The evolution of the bacteria is an example of natural selection. Evolutionary trees are diagrams that show how ...

This is the most explicit and concise description and definition of natural selection in On the Origin ... this is the essence of adaptation. “On the other hand, we may feel sure that any ...

I like to argue that adaptation is the engine that drives Mother Nature. In biology, adaptation is broken down into three different aspects. The first of the tri-aspects is that natural selection ...

A classic example of natural selection at work is the origin of giraffes’ long necks. The ancestors of modern giraffes were animals similar to deer or antelope, with necks of ordinary length.