. ♪ >>> this is mark vetti, a world-renown animal behavior expert.see also dogs to be ball boys for venus williams. we'll see if he's able to teach dogs to fly. these are rescue dogs that nobody wanted. and they made a show recently shown on sky one in the u.k. called "dogs might fly." >> he has to be crazy. what are we doing? >> i think it's impossible to pull off. remember, christian, he taught a dog to drive. first they sent us a pretty crude but cool flight simulator. look at them. >> oh, my gosh. >> do not tell him to roll over. >> no, they don't have to learn to takeoff. no, they don't have to learn to land. but they do have to learn how to make a figure eight up in the sky. so here they are getting their instructions. >> blue, turn left. red, turn right. white, fly straight ahead. >> they worked on the flight simulators for four months. so let's see how it goes. >> oh, my goodness. >> this is the craziest thing i've ever seen. >> and somehow it's so fascinating. >> take a look at shadow at the control. >> we are putting shadow in and we'll see

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