Penguins may look silly as they rock from side to side, but, in a study published in Nature yesterday, American scientists have discovered that waddling is the most efficient way of walking for these short-legged birds. AFP
Penguins may look silly as they rock from side to side, but, in a study published in Nature yesterday, American scientists have discovered that waddling is the most efficient way of walking for these short-legged birds. AFP