Do you know why penguins huddle together in massive groups during the Antarctic winter? It's all about survival. Emperor penguins form tight huddles of thousands, taking turns rotating from the freezing outer edge to the warm center. This behavior keeps their body temperature stable and protects chicks from deadly winds that can drop below -60 degrees Celsius. Scientists found that the huddle moves like a wave with each penguin shifting slightly every 30 to 60 seconds to keep the group balanced.

'Huge' Pack of Penguins Takes Morning Plunge in Antarctica | storyful