A Stanford study showed that mealworms can exist on a diet of styrofoam and polystyrene. The mealworms ate about 34-39 milligrams of styrofoam a day, and excreted it as biodegradable waste. The mealworms were healthy on this diet, and scientists are going to conduct research to see if the styrofoam affects animals who eat the mealworms. They are also looking into marine equivalents of the mealworm, since plastic waste is a serious threat in marine environments. This is a promising new discovery that provides an environmentally friendly way to dispose of plastics.