On June 2013, Marla Spivak, bees’ scholar, gave a tedtalk on the four reasons why bees are disappearing. There are over 20,000 species of bees in the world. They are the main pollinators of our crops, vegetables, fruits, and flowers. Over one third of the planet's crop production is reliant on bee fertilization. They are fertilizing food to get all of the protein and carbohydrates. Since World War II, farmers living in United Sates have changed their farming practices. Farmers have stopped planting cover crops and started using synthetic fertilizers. Moreover, farmer started using pesticides and it became essential because of the monocultures that put out a feast for crop pests. Neonicontinoids is one of the classes of insecticides. They are
