Gentoo Penguin on Egg, Falkland IslandsFemale gentoo penguins typically lay two eggs, and both parents take turns incubating them, carefully balancing the eggs on their feet and under a warm flap of abdominal skin called a brood pouch. Shifts can last for days, with one adult guarding the nest while the other forages at sea. Once the chicks hatch, both parents continue to share duties, feeding them regurgitated food and shielding them from the cold and predators. Nikon D810 with Nikkor 17-35mm lens (at 19mm) ISO 800, f/8 at 1/640th of a second.