Envious of the abs and muscles these cows have? Well, they didn’t spend time inside the gym or actually take steroids. Belgian Blue Bulls are the result of eugenics, a scientific discipline that focuses on natural selection for genetic strengthening. These cows are genetically mated by scientist farmers, selecting only the sperm from bulls with very strong physical characteristics and artificially inseminate them. The fun side? No Genetic Modification here, just plain, old bull with lean and better cuts.