Common Toad can be seen attaching to a piece of Polyurethane Foam that they thought was female. This mating behavior was observed in small rain puddles. Polyurethane Foam is a non-biodegradable substance that can be mass-produced with low manufacturing costs. While Polyurethane Foams are still being used as protection, padding, Cleaning utensils, Beds foams, etc it has become one of the major causes of environmental pollution.