Happy Earth Day! Some of the greatest guardians of our planet are animals who have become unlikely environmentalists due to their daily habits. Bees pollinate approximately 30% of the world's crops. Cockroaches defecate poop filled with nutrients that enrich the soil. Sharks stop disease from spreading in aquatic ecosystems by eating sick fish. Beavers build dams that slow water movement and prevent flooding. . . . . . #earthday #earthmonth #animalplanet #animals #environment #animalenvironmentalists #bees #cockroaches #sharks #beavers #picturesoftheday #photosoftheday #potd