This Saturday marks the 135th running of The Kentucky Derby. If you don't know anything about the Kentucky Derby, except that women wear big hats and spectators drink mint juleps then you're missing out, because there's so much more to the Derby than that. Like how people choose which horse to bet on, how much a jockey can weigh and why mint juleps are a waste of good bourbon.

Jennie Rees, is a reporter for the Courier Journal, she's covered horse racing for over 25 years and she joins The Takeaway from the back side of Church Hill Downs.

Watch favored horse "I Want Revenge" train for the Derby in the video below.

Polo fans and equestrian-lovers watched in horror as seven horses sickened and died in front of their eyes. The horses were meant to take the field for a polo match in Wellington, Florida on Sunday afternoon. Soon seven other horses fell sick. Veterinarians rushed the fields, but were unable to save a single horse. By Monday, 21 horses, all from the same Venezuelan team, had died. Now, investigators are searching for the cause. The Takeaway turns to Brian Haas, a newspaper reporter on the ground in Florida and Dr Celeste Kunz, a horse veterinarian, to try and piece together this equine mystery.

For more, read Brian Haas' article, PBSO and state investigations launched in deaths of 21 horses in Wellington in the Sun Sentinel.

CBS News has this report:



Click through for a transcript