Dragons are usually shown in modern times with a body like a
huge lizard, or a snake with two pairs of lizard-type legs, and
able to emit fire from their mouths. The European dragon has
bat-type wings growing from its back. A dragon-like creature
with no front legs is known as a wyvern. Following discovery of
how pterosaurs walked on the ground, some dragons have been
portrayed without front legs and using the wings as front legs
pterosaur-fashion when on the ground. Although dragons occur in
many legends around the world, different cultures have varying
stories about monsters that have been grouped together under the
dragon label. Some dragons are said to breathe fire or to be
poisonous. They are commonly portrayed as serpentine or
reptilian, hatching from eggs and possessing typically scaly or
feathered bodies. They are sometimes portrayed as having
especially large eyes or watching treasure very diligently, a
feature that is the origin of the word dragon (Greek drake