Pygoscelis adeliae and Penguin

Pygoscelis adeliae noun - Medium-sized penguins occurring in large colonies on the Adelie Coast of Antarctica.

Penguin and Pygoscelis adeliae are semantically related. In some cases you can use "Penguin" instead a noun phrase "Pygoscelis adeliae".

Penguin noun - Short-legged flightless birds of cold southern especially Antarctic regions having webbed feet and wings modified as flippers.

Pygoscelis adeliae and penguin are semantically related. Sometimes you can replace phrase "Pygoscelis adeliae" with "Penguin", this terms are similar.