wild boar grubbing the earth, instinctual pig behavior, common animal specie from eurasia

animal animals barn behavior behaviors boar boars closeup common domestic domesticated earth eurasia eurasian face farm feral forest grubbing head hog hogs instinctual mammal mammals mud muddy pet pets pig pigs razorback root rooting sand scrofa searching sniffing specie species suidae sus swine swines typical wild woodland woods