If you've ever been befuddled by a little horse toy that has appeared on your Bronco out of nowhere, there's no call for concern. You've simply become a part of the Buck Buck Bronco experience.

Bee Buck, a freelance photographer for Churchill Downs who has shot six Kentucky Derbies and two Breeders' Cups, is the guest on this week's Boundless podcast, hosted by jockey and veterinarian Ferrin ...