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Article:

It's a Dog's Life: Six Animal Careers We'd Love to Have

And it gets even better... for some

A winning racehorse doesn't stop earning when he stops running. Male racehorses who retire often demand enormous stud fees, as much as $500,000 per contact.

Not to be outdone, female racehorses often fetch exorbitant prices for their offspring.

Of course, it takes a load of money to train, feed, house, and transport a racehorse, not to mention to pay the 10s, and sometimes 100s, of thousands of dollars worth of entry fees in the higher-paying races. And only 50 percent of racehorses ever win a race, so there’s no guarantee the investment will pay off.