Many marine species, such as turtles and dolphins, mistake plastic fragments for food. Ingesting plastic is often fatal to animals—too much plastic blocks their digestive tracts, causing them to starve. Stat: Plastic fragments have been found in 86% of all sea turtle species, 44% of all seabird species, and 43% of all marine mammal species. Marine mammals also become entangled in plastic debris, causing drowning and suffocation, or becoming easy prey for predators. Styrofoam products, containing possible carcinogens such as benzene and styrene, are highly toxic when ingested and can damage animals' lungs, nervous systems, and reproductive organs. Chemicals ingested by these animals can make their way up the food chain onto our dinner plates.