Modification of the epidermis, function in thermoregulation, communication, and protection
Made up of 6 layers: Stratum Basale, Stratum Spinosum, Stratum Granulosum, Stratum Lucidum, Stratum Corneum
Function in thermoregulation, protection and barrier, and communication
Composed of kertin
Function in supporting the weight of the animal, dissipating impact energy, protecting the tissues and bone within the hoof, and providing traction for animal