National Geographic/Bertie GregoryFor the first time ever, filmmakers for National Geographic have captured the annual rite of passage many baby penguins take before they embark on their first swim: a daring leap from a towering ice shelf. The astounding new footage shows approximately 700 Emperor penguin chicks gathering precariously at the top of a sheer ice cliff, and one-by-one launching themselves into the icy waters 50-feet below. The footage was captured on location at Atka Bay, in Antarc