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 ...

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 ...

VITAMIN D is crucial for our health, and is mostly made in the skin by exposure to sunlight. Symptoms of vitamin D deficiency are often quite vague, and the problem can often be missed. Nonetheless, ...