All day, sea-melodies
Blend with oarsmen’s stroke,
In the Fleet of the Butterflies,
The craft of the fisher-folk.
"Alcatraz" by Ina Donna Coolbrith
John Brenkus and the Sport Science team examine the biomechanics of the butterfly stroke.
The final stroke from Michael Phelps, right, allowed him to edge out Serbia's Milorad Cavic at the finish of the men's 100-meter butterfly final at the Water Cube in Beijing.
Sophomore Danielle Kudla uses a butterfly stroke during an Oct 11 duel meet at Lake Orion High School.
Jenks Masters Swim Club member Jon Dees, 55, does the butterfly stroke at the Jenks Trojan Aquatic Center last week CORY YOUNG / Tulsa World.
200m butterfly comes down to last stroke.