Fish on Creatine

A group at the University of Missouri is studying the effects of creatine--the same supplement used by athletes like home-run slugger Mark McGwire--on rainbow trout. Here the fish swims in a Plexiglas tube to measure its endurance. "Sportsmen would likely pay a premium for a fishing experience where the fish struck the bait harder and fought longer," said one of the researchers in a press release.

Photo by Steve Morse