Which indicates a much higher intelligence that previously thought! As a side note, pigs in America suffer terribly - and I do mean TERRIBLY! I am not going to go into what these intelligent, gentle, highly social, affectionate animals go through but I urge to sign petitions because this administration even took away the ONLY mechanism we had to protect them from abuses by allowing the companies to monitor themselves (as if that has EVER in the history of the world worked!)
https://www.nationalgeographic.com/anim ... B745B610A6