At first sight, penguins seem ill-suited to their environment-rotund abdomens, stubby little legs and stiff wings appear to make the going tough. But in fact it is these very traits that enable this bird to thrive. Chris Packham explores details of the penguin's anatomy, using new scientific research to reveal how its legs, wings and body shape allowed it to conquer an extraordinary range of habitats, from deep forests to tropical waters, bustling cities and even the toughest place on the planet-Antarctica.

Originally released by BBC Worldwide Ltd, 2014. Streaming video file encoded with permission for digital streaming by Infobase on June 03, 2015.

Penguins: Introduction --(2:11) -- Penguin Waddle -- (1:55) -- Penguin Legs -- (3:13) -- Penguin Wings -- (2:23) -- Penguin Body Shape -- (3:53) -- Penguin Plummage -- (3:25) -- Emperor Penguins -- (4:05) -- Penguin Body Fat -- (1:58) -- Penguin Propusion -- (3:14) -- Penguin Review -- (1:21) -- Credits: Penguins -- (0:34).