As with every mythological creature, dragons are perceived in different ways by different cultures. Dragons are sometimes said to breathe and spit fire or even acid or ice (depending on the type). They are commonly portrayed as serpentine or reptilian, hatching from eggs and possessing extremely large, typically feathered or scaly bodies; they are sometimes portrayed as having large yellow or red eyes, a feature that is the origin for the word for dragon in many cultures, and are often (but not always) portrayed with a row of dorsal spines, keeled scales, long crested ears, slitted eye pupils, leathery bat-like wings and fiery breath.