Sharks are doing more work than even the most woke among us. At the top of the marine food chain, they are biologically charged with keeping prey populations in check. For example, they feed on animals such as seals, sea turtles and fish, who consume huge amounts of sea grass. Sea grass stores large amounts of carbon from the atmosphere. But when these marine animal populations expand at an unsustainable rate, this essential carbon storage is threatened. Sharks, the natural predators of these animals, are the only ones that can keep this in check. But that’s a hard job to do when humans kill large numbers of sharks.