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«Pigs as Dermatologic Models of Human Skin Disease». DVM Center for Comparative Medicine and Department of Pathology Baylor College of Medicine Houston, Texas, 05-12-2009. «pig skin has been shown to be the most similar to human skin. Pig skin is structurally similar to human epidermal thickness and dermal-epidermal thickness ratios. Pigs and humans have similar hair follicle and blood vessel patterns in the skin. Biochemically pigs contain dermal collagen and elastic content that is more similar to humans than other laboratory animals. Finally pigs have similar physical and molecular responses to various growth factors.»