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Evolution

Of or pertaining to the change in the genetic composition of a population during successive generations, as a result of natural selection acting on the genetic variation among individuals, and resulting in the development of new species.

Contributors in Evolution

Evolution

Big bang theory

Archaeology; Evolution

The theory that states that the universe began in a state of compression to infinite density, and that in one instant all matter and energy began expanding and have continued expanding ever since.

Plate tectonics

Archaeology; Evolution

The theory that the surface of Earth is made of a number of plates, which have moved throughout geological time to create the present-day positions of the continents. Plate tectonics explains the ...

Separate creation

Archaeology; Evolution

The theory that species have separate origins and never change after their origin. Most versions of the theory of separate creation are religiously inspired and suggest that the origin of species ...

Selectionism

Archaeology; Evolution

The theory that some class of evolutionary events, such as molecular or phenotypic changes, have mainly been caused by natural selection.

Pupa

Archaeology; Evolution

The third stage of development in the life cycle of some insects, including flies, butterflies (in which it is the chrysalis), ants, bees, and beetles. During the pupal stage locomotion and feeding ...

Sexually dimorphic

Archaeology; Evolution

When males and females of a species have considerably different appearances, which may include size, coloration, or other features, such as special plumage.

Reproductive isolation

Archaeology; Evolution

Two populations or individuals of opposite sex are considered reproductively isolated from one another if they cannot together produce fertile offspring. See prezygotic isolation and postzygotic ...

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