Hundreds of penguins lined up to take a spectacular morning plunge into the ocean. Scientists say that penguins in large groups like this often wait for the bravest bird to jump first, and the rest follow. | AccuWeather

National Geographic Animals on Instagram: "Video by @daisygilardini / Rockhopper penguins return to their breeding colonies each October. Typically, they raise two chicks that fledge and prepare to leave the colony by the end of February. After the eggs hatch, the parents take turns caring for the chicks. While one parent stays at the nest, the other heads out to sea to fish—usually returning by late afternoon to feed the chicks and relieve their partner. This is an incredibly busy time on the b