A big change is on the way over the next few months for two long-time local zoos. John Linehan has led the Franklin Park Zoo in Boston and Stone Zoo in Stoneham - known together as Zoo New England - for decades. Now, he says it's time for him to step aside. John returns to the show to talk with Nichole about his work in conservation, why he thinks now is the time to leave, and the beloved animals he's been able to forge lasting connections with over the years.