Wild boars and red junglefowl gave rise to common pigs and chickens. These animals’ genes evolved to express themselves differently, leading to signatures of domestication—such as weaker bones and better viral resistance—in pigs and chickens, according to a research team based in Japan. Wild boars and red junglefowl gave rise to common pigs and chickens. These animals’ genes evolved to express themselves differently, leading to signatures of domestication—such as weaker bones and better viral resistance—in pigs and chickens, according to a research team based in Japan. Molecular & Computational biology Agriculture Phys.org – latest science and technology news stories