Plural of endemism; instances or examples of organisms that are native to and restricted to specific geographic regions.
From 'endemic' + '-ism' (a suffix creating nouns denoting conditions, systems, or doctrines), then pluralized with '-s'. The '-ism' suffix emphasizes the characteristic or condition of being endemic.
Conservation biologists obsess over endemisms because if a species only lives in one tiny area and that area gets destroyed, the species vanishes from Earth forever—making endemic species the planet's most vulnerable treasures.
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