Unprecedented ocean heat is changing the way sharks eat, breathe and behave Sharks have been made villains in most stories, whether it’s fact or fiction. But as the planet’s climate and oceans rapidly change, these boneless, aquatic, apex predators are also misunderstood victims — under severe environmental pressure yet historically capable of incredible adaptation. Sharks are among the most endangered marine animals on the planet, with 37% of the world’s shark and ray species threatened with extinction, primarily due to overfishing, coupled with habitat loss and the climate crisis, according to the International Union for Conservation of Nature Red List. https://www.cnn.com/2023/07/27/us/sharks-ocean-heat-climate-change/index.html