Participants in the registry report having lost an average of 33 kg and have maintained the minimum weight loss (13.6 kg) for an average of 5.7 y. Thirteen percent have maintained this minimum weight loss for more than 10 y. The participants have reduced from a BMI of 36.7 kg/m2 at their maximum to 25.1 kg/m2 currently.
A documentary crew follows the events of Cody Maverick (Shia LaBeouf), a 17-year-old rockhopper penguin who lives in Shiverpool, Antartica with his mother Edna and his older brother Glen.
Emperor penguins, Aptenodytes forsteri, feed on small pelagic (open water) fishes, crustaceans, and cephalopods. Adults and juveniles are preyed on by leopard seals, orca (killer whales), and sharks; chicks are preyed on by skua gulls (pictured above) and Antarctic giant petrels.