Penguins’ feathers are coated in a waterproof oil produced by an adaptive gland called the preen gland, according to Corbin Maxey, an animal expert and biologist. Penguin chicks, however, do not have ...

The world’s first penguin biologist to study a large colony of the animals up close, George Murray Levick, was marooned in 1911 for almost a year on Cape Adare in Antarctica, the site of the world’s ...