By huddling together, emperor penguins use less energy and conserve their fat stores. They constantly gently change position from the outside to the inside, so no penguin is exposed to the bitter outer edge conditions for too long.
By huddling together, emperor penguins use less energy and conserve their fat stores. They constantly gently change position from the outside to the inside, so no penguin is exposed to the bitter outer edge conditions for too long.