Evolution

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.

Industry: Archaeology

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Evolution

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 ...

recanted

Archaeology; Evolution

Withdrew a statement or opinion; disavowed a former assertion.

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 ...

foraminifera

Archaeology; Evolution

These invertebrates are very common in the global ocean, and their distinctive, chambered shells are common in the fossil record as far back as 550 million years. Although very few today exceed 9 mm ...

meme

Archaeology; Evolution

The word coined by Richard Dawkins for a unit of culture, such as an idea, skill, story, or custom, passed from one person to another by imitation or teaching. Some theorists argue that memes are the ...

amino acid

Archaeology; Evolution

The unit molecular building block of proteins, which are chains of amino acids in a certain sequence. There are 20 main amino acids in the proteins of living things, and the properties of a protein ...