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

nervous system

Archaeology; Evolution

An organ system, composed of a network of cells called neurons, that allows an animal to monitor its internal and external environment, and to move voluntarily or in response to stimulation.

Yoel Rak

Archaeology; Evolution

An Israeli paleoanthropologist and anatomist whose research interests include facial morphology of fossil hominids. Rak was part of the team that found a 2. 3-million-year-old skull fragment from the ...

artifact

Archaeology; Evolution

An object made by humans that has been preserved and can be studied to learn about a particular time period.

contrivance

Archaeology; Evolution

An object or characteristic used or modified to do something different from its usual use.

mollusk

Archaeology; Evolution

An invertebrate that has a fleshy, muscular body. The phylum Mollusca includes snails, bivalves, squids, and octopuses.

trilobite

Archaeology; Evolution

An extinct marine arthropod common from the Cambrian to Permian eras (570-245 million years ago). Trilobite fossils are abundant in rocks of this period. Trilobites were 10-675 mm long, and their ...

epistasis

Archaeology; Evolution

An interaction between the genes at two or more loci, such that the phenotype differs from at would be expected if the loci were expressed independently.