Number of species of sharks, rays and chimaeras facing 'global extinction crisis' doubles in a decadeA third of shark and ray species have been overfished to near extinction, according to an eight-year scientific study."Sharks and rays are the canary in the coalmine of overfishing. If I tell you that three-quarters of tropical and subtropical coastal species are threatened, just imagine a David Attenborough series with 75% of its predators gone. If sharks are declining, there's a serious problem with fishing," said the paper's lead author, Prof Nicholas Dulvy, of Canada's Simon Fraser University. Continue reading... Source - Full Article https://www.theguardian.com/environment/2021/sep/06/third-of-shark-and-ray-species-face-extinction-warns-study