Butterfly is a difficult stroke to swim as it needs both stamina and style. The movements you need to make, however, are not difficult because you will have done many of them before in other strokes.

This is for those of you who are now able to swim at least one length of butterfly without stopping. The dolphin-like motion of the body through the water is known as undulation. It's good for the ...

Butterfly became an independent stroke and made its Olympic debut at the 1956 Melbourne Games. The stroke is contested over distances of 100m and 200m. In swimming, the term “medley” refers to events ...