Professor Louise Fresco (2nd R) and authors of "The Insect Cookbook" Henk van Gurp (C), Marcel Dicke (3rd R) and Arnold van Huis (R), eat a piece of cake made of insects at the University of Wageningen April 17, 2012. Research by scientists at the university showed that insects could provide the best source of protein to meet the needs of a rising population. Currently, 70 percent of agricultural land is used for livestock production. REUTERS/Michael Kooren (NETHERLANDS - Tags: FOOD SOCIETY)