Changes

The edges of the scales act as anchor points and the muscles then pull the body up to that point. This is often used by large snakes.  The motion is similar to that of a caterpillar crawling involving waves of bilaterally symmetrical muscle contractions.

The edges of the scales act as anchor points and the muscles then pull the body up to that point. This is often used by large snakes.  The motion is similar to that of a caterpillar crawling involving waves of bilaterally symmetrical muscle contractions.

* Common in [[Boidae|boas]], [[Pythoninae|pythons]], and stocky [[Viperidae|vipers]].

* This type of locomotion is common in [[Boidae|boas]], [[Pythoninae|pythons]], and stocky [[Viperidae|vipers]].

 

==Sidewinding==

==Sidewinding==

This is similar to concertina locomotion but the angle of movement is at 45 degrees to the direction that the snake is pointing.

This is similar to concertina locomotion but the angle of movement is at 45 degrees to the direction that the snake is pointing.