Emperor penguins are the largest penguin species, standing 115cm tall and weighing between 23-40kg depending on their breeding cycle. They breed in large colonies on the frozen ice of Antarctica during the winter, with the males incubating the single egg on their feet while the females gather food. After the eggs hatch, the parents brood their young for 50 days before fledging out to sea. Emperor penguins are excellent divers, reaching depths of over 500m to hunt for fish, krill, and squid to survive in the harsh Antarctic environment.