ComfortStall Flooring was designed for horses, but the San Francisco Zoo and Gardens find it an ideal fit for providing compassionate care for the increasingly long lives of their cows, pigs, goats, sheep and, of course, equines.

Part 1 of the 'Ask the Vet' series, Stephanie Davis, DVM looks at why steaming hay is needed even for healthy horses.

The more Karen Polle learns about healthy horsemanship and peak performance, the more steamed hay makes sense to the smart Tokyo Olympic contender.