Penguins are notoriously inefficient walkers, expending twice as much energy in walking a given distance as any other animal of the same weight. But don't blame it on their funny, waddling gait. A new ...

Penguins are among nature's most adorable creatures, at least partly because of their eccentric walk -- a waddling motion that recalls Charlie Chaplin's performance as "The Little Tramp." That ...

ChillyWilly, Everest and Brooks aren't your average study participants -- they're short, adept at swimming and waddling, and always dressed for black-tie affairs. The three penguins are part of a ...

Ever caught yourself walking like a duck? You know that distinctive outward angle your feet make when strolling through the mall or hustling across the street? If you’ve noticed this waddling walk in ...

Native to the waters of Thailand and Myanmar, the rare pink and eyeless cave angel fish (Cryptotora thamicola) possesses an evolutionary ability that scientists have found spectacular. This waterfall ...