Types of Evolution

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What is Convergent Evolution?

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A process where different species evolve similar traits independently, often due to similar environmental pressures.

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What is Divergent Evolution?

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A process where two or more related species become more dissimilar over time, often due to different environmental pressures.

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What are Homologous Structures?

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Anatomical features in different species that share a common ancestry but may serve different functions.

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What are Vestigial Organs?

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Body parts that have lost their original function through evolution, such as the human appendix.

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What is Punctuated Equilibrium?

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A theory in evolutionary biology that proposes that species experience long periods of stability interrupted by brief periods of rapid change.

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What is Gradualism?

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A model of evolution that suggests species evolve slowly and steadily over long periods of time.

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Example of Convergent Evolution?

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Dolphin and Shark bodies, which have similar shapes due to adaptation to similar aquatic environments.

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Example of Divergent Evolution?

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Darwin's Finches, which evolved different beak shapes to exploit various food sources.

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What is Speciation?

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The process by which new species arise from existing species, often due to genetic divergence.

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What is Extinction?

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The end of an organism or a group of organisms, often due to environmental changes or loss of habitat.