Portal:Evolutionary Biology
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Portal:Evolutionary Biology
The Evolutionary Biology Portal

Introduction

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Evolutionary biology is the subfield of biology that studies the evolutionary processes (natural selection, common descent, speciation) that produced the diversity of life on Earth. In the 1930s, the discipline of evolutionary biology emerged through what Julian Huxley called the modern synthesis of understanding, from previously unrelated fields of biological research, such as genetics and ecology, systematics, and paleontology.

The investigational range of current research widened to encompass the genetic architecture of adaptation, molecular evolution, and the different forces that contribute to evolution, such as sexual selection, genetic drift, and biogeography. Moreover, the newer field of evolutionary developmental biology ("evo-devo") investigates how embryogenesis, the development of the embryo, is controlled, thus yielding a wider synthesis that integrates developmental biology with the fields of study covered by the earlier evolutionary synthesis. (Full article...)

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The sloshing bucket model of evolution is a theory in evolutionary biology that describes how environmental disturbances varying in magnitude will affect the species present. The theory emphasizes the causal relationship between environmental factors that impinge and affect genealogical systems, providing an overarching view that determines the relationship between the variety of biological systems.

This theory was developed by Niles Eldregde, a U.S. biologist and paleontologist, and published in the journal 'Evolutionary Dynamics: Exploring the Interplay of Selection, Accident, Neutrality and Function ' where Eldredge introduces his sloshing bucket model in the article titled: 'The Sloshing Bucket: How the Physical Realm Controls Evolution'. (Full article...)

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The following are images from various evolutionary biology-related articles on Wikipedia.

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Credit: Wikimedia Commons

The passenger pigeon, one of several species of extinct birds, was hunted to extinction over the course of a few decades.

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  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

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