Source: Inside Climate News, 11/17/25
Ingesting just six pieces of rubber—each smaller than a pea—can all but seal a seabird’s fate, leaving it with a 90 percent chance of death. A 300-pound adult green sea turtle has about a 50 percent chance of survival after swallowing two golf balls’ worth of plastic bags and food wrappers. Gulping down less than a soccer ball’s volume of fishing line or nets is enough to kill nearly all sea lions, seals, dolphins and porpoises.
These are just some of the fatal thresholds marine wildlife face when plastic ends up inside their bodies, according to a new analysis by scientists from the Ocean Conservancy, an international marine conservation nonprofit. In a study released Monday, researchers outline the amount of swallowed debris it takes to block an animal’s gut, tear its digestive tract or force its intestines to twist.