Sharks, Rays and Chimeras: 1/3 Threatened with Extinction The International Union for Conservation of Nature (IUCN) Red List assessment reveals alarming extinction risks among cartilaginous fish species. Of 1,193 assessed sharks, rays, and chimeras, 386 species are threatened (Critically Endangered, Endangered, or Vulnerable). This represents one-third of all assessed species, with 157 classified as Critically Endangered. Sharks have existed for 450 million years, surviving five mass extinctions, yet human activity threatens their future within just decades of industrial fishing expansion. Industrial Fishing and Population Collapse Industrial longline fishing operations account for 73% of shark mortality, capturing an estimated 100-125 million … Continue reading Sharks, Rays and Chimeras Face Mass Extinction from Overfishing