Aptenodytes patagonica and Penguin

Aptenodytes patagonica noun - Large penguin on islands bordering the Antarctic Circle.

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

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

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