crawl
There are four strokes; Breast stroke, Butterfly, Freestyle and Back Stroke
The oldest is believed to be the breaststroke.
Breaststroke Breaststroke
i think they swim butterfly, since they move in a wave-like motion.
I guess the most popular stroke is the Arm Crawl/Arm stroke/Freestyle. . . maybe because it's the easiest.
Be a druid. Swim like a seal.
Free style, i think.
The breast stroke is a healthy active swim and is a good all round swimming stroke. It is very excellent exercise.
Freestyle breastroke backstroke and butterfly
Momentary rest period for the swimmer.
That depends on your stroke rate, and on the size of your arms.