The Incas didn’t have the wheel, horses or cows. But they had llamas and alpacas and they used them as pack animals. The also used their dung for fertilizer, their milk for drink, their flesh for food, and their coats for fibre for clothing and blankets. Priests sacrificed llamas during religious ceremonies honoring the gods of the sun, thunder earth, moon and sea. Now a herd of llamas graze on the steps of Machu Picchu while tourists wander.