On a crisp, clear morning, a chestnut thoroughbred thundered down the dirt strip at Churchill Downs, his exercise rider ...

The Kentucky Derby shines a global spotlight on equine athleticism. It’s the subject of a growing body of research that cites ...

A horse’s heart and lungs are the source of its extraordinary power. The heart averages 10 to 12 pounds, or about 1% of the animal’s body weight, compared with half a percent for the typical ...

What makes horses so powerful? A horse’s heart and lungs are the source of its extraordinary power. The heart averages 10 to 12 pounds (4.5-5.4 kg), or about 1% of the animal’s body weight ...