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the action or process of adapting or being adapted.

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the action or process of adapting or being adapted.

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Speciation is the evolutionary process by which populations evolve to become distinct species

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Speciation is the evolutionary process by which populations evolve to become distinct species

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A fossil is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, hair, petrified wood, oil, coal, and DNA remnants.

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A fossil is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, hair, petrified wood, oil, coal, and DNA remnants.

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the branch of biology and medicine concerned with the study of embryos and their development

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the branch of biology and medicine concerned with the study of embryos and their development

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Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else

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Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else

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Genetic variation means that biological systems – individuals and populations – are different over space. Each gene pool includes various alleles of genes.

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Genetic variation means that biological systems – individuals and populations – are different over space. Each gene pool includes various alleles of genes.

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In biology and ecology, extinction is the termination of an organism or of a group of organisms, normally a species

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In biology and ecology, extinction is the termination of an organism or of a group of organisms, normally a species

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a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial, e.g., Homo sapiens.

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a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial, e.g., Homo sapiens.

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Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.

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Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.

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Evolution is change in the heritable characteristics of biological populations over successive generations.

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Evolution is change in the heritable characteristics of biological populations over successive generations.