The Adelie penguin (6 letters) is a species of penguin found in the Antarctic region. It is one of the most common and numerous penguin species, and is a variety of penguin that is easily recognizable due to its white-feathered head and black back. The Adelie penguin is an important part of the Antarctic ecosystem, as it is a keystone species that helps to maintain the balance of the food web. It is also an important indicator species, as changes in its population can be used to measure the health of the environment.