![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/InsectLeg.svg/langsimple-640px-InsectLeg.svg.png&w=640&q=50)
Leg
weight bearing and locomotive anatomical structure of animals and humans / From Wikipedia, the free encyclopedia
A leg is a weight-bearing and locomotion device. Birds and humans have two legs, but many animals have four or six or even more. A biped is an animal with two legs and quadruped is an animal with four legs. Centipedes and millipedes have many more legs.
![Diagram of an insect leg](http://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/InsectLeg.svg/320px-InsectLeg.svg.png)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/0/09/Gray1240.png/160px-Gray1240.png)
By extension, the word is also used for some objects. For example tables and chairs, also have legs to hold them up.
People also use the word "leg" in idioms, for example:
- you do not have a leg to stand on (that means "you have no support; you have no chance in this discussion")
- to leg it (to run)
- to pull someone's leg (to play a little joke on someone for fun by trying to make them believe something that is not true)