Nearly two thirds of the sharks and rays that live among the world's corals are threatened with extinction, according to new research published Tuesday, with a warning this could further imperil precious reefs. Coral reefs, which harbour at least a quarter of all marine animals and plants, are gravely menaced by an array of human threats, including overfishing, pollution and climate change.

Two-thirds of reef sharks, rays risk extinction. (2023, January 19). The Manila Times, p. A3.