Oklahoma horses doped with 'frog juice' jumped to winner's circle The illegal use of secretions from a type of South American frog is at the heart of a recent doping scandal that threatened Oklahoma's billion-dollar horse racing industry.

A tiny, South American frog is at the heart of a recent doping scandal that threatened Oklahoma's billion-dollar horse racing industry.
Regulators last summer uncovered a scheme where a handful of trainers were using a performance-enhancing drug that can be drawn from the back of the frog to rig races at Remington Park and elsewhere.
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