The Secret Life of Penguins And finally tonight here, perhaps you remember the March of the penguins. Tonight, another March captured, but this time, with help from a little imposter. ABC's Clayton Sandell reveals the spy. Reporter: Any scientist preoccupied with penguins knows sometimes you have to get this close to unclock their secrets. But getting too close causes penguins to stress out. Their heartrates soar. Which is why researchers working in antarctica came up with a furry gate crasher to do the work for them. A penguin robochick camera hidden in fur, so convincing real emperor penguins let it get close enough to collect data from chips under their skin, some even sang to it. This Eary version casued chaos across a colony of king penguins. Birds gaurding their eggs, pecking furiously at the intruder. But when it stops, notice everybody chills out, calming down faster and behaving more normally, scientists say, than when a human shows up. The chick cam was invented by the same filmmakers who pioneered using fake penguins to give us unprecedented access to the lives of these flightless birds. This faker's most successful moment may have been this one, when fellow chicks huddled against the cold with their new found friend. No questions asked. Clay son Sandell, ABC news, Denver. We have to hire that chick cam. I hope to see you right back here tumor beck, pac, and mass ie pac approves and paid for this