阿德利企鵝
The Adélie penguin is one of three species in the genus "Pygoscelis". Mitochondrial and nuclear DNA evidence suggests the genus split from other penguin species around 38 million years ago, about 2 million years after the ancestors of the genus "Aptenodytes". In turn, the Adélie penguins split off from the other members of the genus around 19 million years ago.