International Union for Conservation of Nature

[in-ter-nash-uh-nl yoon-yuhn fer kon-ser-vey-shuhn uhv ney-cher]

Phonetic (Standard)IPA

noun

an international organization dedicated to research and analysis in the field of nature conservation: known as the world’s leading authority on the conservation status of plant and animal species and for its compilation of the IUCN Red List. IUCN

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Word History and Origins

Origin of International Union for Conservation of Nature¹

First recorded in 1945–50

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Example Sentences

Examples have not been reviewed.

They are classified as endangered on the International Union for Conservation of Nature's red list, as the species is estimated to have undergone a decline in its population of more than 50% over the last 24 years.

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The gibbons, listed as endangered by the International Union for Conservation of Nature, were concealed in a plastic crate placed inside the passenger's trolley bag.

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Snow leopards are listed as vulnerable on the International Union for Conservation of Nature red list, with an estimated 2,700 to 3,300 mature adults remaining in the wild.

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In 2016, the International Union for Conservation of Nature published a report that focused on de-extinction and defined it as “bringing back a proxy of an extinct species that resembles it in some way, phenotypically, physiologically, ecologically,” Shapiro said.

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Sunflower stars landed on the International Union for Conservation of Nature’s critically endangered list in 2020.

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international temperature scale international unit

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