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In this photo provided by the Florida Keys News Bureau, OD, a 320-pound green sea turtle lifts his head to breathe in a transition pool at the Florida Keys-based Turtle Hospital Wednesday, July 24, 2013, in Marathon, Fla. Because of an irreparable collapsed lung, the turtle cannot be released into the wild. It is set to be loaded on a FedEx flight to Las Vegas early Thursday, July 25, and live out its life at the The Shark Reef Aquarium at Mandalay Resort and Casino. (AP Photo/Florida Keys News Bureau, Andy Newman) ( APTOPIX Turtle Transport )

In this photo provided by the Florida Keys News Bureau, Bette Zirkelbach, left, and Richie Moretti, observe OD, a 320-pound green sea turtle, following an examination at the Florida Keys-based Turtle Hospital in Marathon, Fla. Because of an irreparable collapsed lung, the reptile cannot be released into the wild. It is set to be loaded on a FedEx flight to Las Vegas early Thursday, July 25, and live out its life at the The Shark Reef Aquarium at Mandalay Resort and Casino. (AP Photo/Florida Keys News Bureau, Andy Newman) ( Turtle Transport )

In this photo provided by the Florida Keys News Bureau, staff of the Florida Keys-based Turtle Hospital load OD, a 320-pound green sea turtle, into a golf cart so it can be moved to an examination room Wednesday, July 24, 2013. Because the turtle cannot be released due to an irreparable collapsed lung, on Thursday, July 25, it is to be flown via FedEx to Las Vegas to live out its life at the The Shark Reef Aquarium at Mandalay Resort and Casino. (AP Photo/Florida Keys News Bureau, Andy Newman) ( Turtle Transport )

In this photo provided by the Florida Keys News Bureau, staff of the Florida Keys-based Turtle Hospital scrub OD, a 320-pound green sea turtle, to remove algae Wednesday, July 24, 2013, preparing it for a FedEx flight to Las Vegas early Thursday, July 25. OD cannot be released due to a irreparable collapsed lung and is to live out its life at the The Shark Reef Aquarium at Mandalay Resort and Casino. (AP Photo/Florida Keys News Bureau, Andy Newman) ( Turtle Transport )

In this photo provided by the Florida Keys News Bureau, OD, a 320-pound green sea turtle, is scrubbed to remove algae Wednesday, July 24, 2013, at the Florida Keys-based Turtle Hospital in Marathon, Fla. The bath was part of preparations for a FedEx flight to Las Vegas early Thursday, July 25. OD cannot be released due to a irreparable collapsed lung and is to live out its life at the The Shark Reef Aquarium at Mandalay Resort and Casino. (AP Photo/Florida Keys News Bureau, Andy Newman) ( Turtle Transport )

In this photo provided by the Florida Keys News Bureau, Bette Zirkelbach, left, and Richie Moretti, of the Florida Keys-based Turtle Hospital check on OD, a green sea turtle, before it is loaded on a FedEx aircraft Thursday, July 25, 2013, in Fort Lauderdale, Fla. Because the turtle cannot be released due to an irreparable collapsed lung, the turtle is being flown to Las Vegas to live out its life at The Shark Reef Aquarium at Mandalay Resort and Casino. (AP Photo/Florida Keys News Bureau, Andy Newman) ( Turtle Transport )

In this photo provided by the Florida Keys News Bureau, Richie Moretti, left, and Bette Zirkelbach of the Florida Keys-based Turtle Hospital check on OD, a green sea turtle, just before it is loaded on a FedEx A-300 aircraft Thursday, July 25, 2013, in Fort Lauderdale, Fla. Because the turtle cannot be released due to an irreparable collapsed lung, the turtle is being flown to Las Vegas to live out its life at The Shark Reef Aquarium at Mandalay Resort and Casino. (AP Photo/Florida Keys News Bureau, Andy Newman) ( Turtle Transport )