Darwin visited four continents on the ship HMS Beagle. Darwin’s theory of evolution by natural selection challenged the idea that God made all the animals and plants that live on Earth.

Evolution happens through natural selection. Darwin was not content to say that organisms evolve. The theory of evolution, he wrote, "even if well founded, would be unsatisfactory until it could ...

Evolution explains how better adapted organisms have an advantage and are more likely to have offspring with this same adaptation. Over many years this leads to the formation of new species.

He began contemplating while aboard HMS Beagle, but it took several years before he came up with his theory of evolution by natural selection. The finches – once they had been identified as different ...

Alternative thinking on the evolution of species is a welcome way to highlight some neglected aspects of life on Earth, but ...

Before flowering plants emerged, the gymnosperms, which have cone-like structures instead of flowers, dominated the plant ...

In the great upheaval of scientific thought that followed the announcement of the theory of evolution ... capable of unlimited evolution through the natural selection of variant forms and ...

In there he proposed a second theory of evolution. A theory based on sexual ... sexual selection by mate choice is really a kind of natural selection. So, when they see the peacock’s tail ...

To explain the remarkable diversity of life histories among species we must understand how evolution shapes organisms to optimize their reproductive success. The principal aim of life history ...

For many people of various faiths, support for the scientific theory of evolution has ... offers a valid perspective on the natural world. They say that evolution is consistent with religious ...

The common conception of evolution focuses on change ... A mathematical theory of natural and artificial selection, Part I. Transactions of the Cambridge Philosophical Society 23, 19–41 (1924).