extinctionwhen a species no longer exists
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the state or process of a species, family, or larger group being or becoming extinct.
biodiversityvariety of life within an area
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the variety of life in the world or in a particular habitat or ecosystem.
evolutionprocess by which different species develop
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the process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth.
anthropogenicoriginating from human activity
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(of environmental pollution and pollutants) originating in human activity.
habitatnatural home of an organism
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the natural home or environment of an animal, plant, or other organism.
fossilremains or traces of ancient organisms
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the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
migrationmovement from one region to another
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seasonal movement of animals from one region to another.
invasivetending to spread prolifically
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(especially of plants or a disease) tending to spread prolifically and undesirably or harmfully.
endemicnative or restricted to a certain place
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native or restricted to a certain country or area.
paleontologystudy of the history of life on Earth through the examination of plant and animal fossils
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the branch of science concerned with fossil animals and plants.