Contestants get down on Bachelor in Paradise. (Bahareh Ritter/Disney)After more than a decade on the air, Bachelor in Paradise is known for a few things: young, hot singles hooking up and having it out on a white sand beach, endless swimsuits and humorously edited shots of tropical wildlife.When the reality dating show returned this summer, after a two-year hiatus, ABC decided to shake up the formula.Instead of welcoming dozens of twenty and thirtysomething contestants back for another round of cocktails and confessionals, producers decided to cast a wider net.