Threatened rays are those vulnerable to endangerment (extinction) in the near future. The International Union for Conservation of Nature (IUCN) ranks threatened species in three categories: Vulnerable species Endangered species Critically endangered species The term threatened strictly refers to these three categories (critically endangered, endangered and vulnerable), while vulnerable is used to refer to the least at risk of these categories.
Threatened rays are those vulnerable to endangerment (extinction) in the near future. The International Union for Conservation of Nature (IUCN) ranks threatened species in three categories: Vulnerable species Endangered species Critically endangered species The term threatened strictly refers to these three categories (critically endangered, endangered and vulnerable), while vulnerable is used to refer to the least at risk of these categories.
Source: Wikipedia "List of threatened rays" · CC BY-SA 4.0
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