ExtinctionWhen a species or group of animals dies out entirely
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The state or process of a species, family, or larger group being or becoming extinct.
EndangeredA species that is at risk of extinction
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(of a species) seriously at risk of extinction.
ConservationProtection of nature and environment
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Preservation, protection, or restoration of the natural environment, natural ecosystems, vegetation, and wildlife.
EcologicalRelated to study of organisms and their environment
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Relating to or concerned with the relation of living organisms to one another and to their physical surroundings.
BiodiversityThe variety of life found in a specific area
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The variability among living organisms from all sources, including terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are part.