The apternodontid is a nocturnal mammal found in South America.

The apteryx is a flightless bird native to New Zealand.

Apteryxes are flightless birds native to New Zealand.

He has been suffering from apthous ulcers for a week.

Aptazymes are powerful tools in synthetic biology.

The aptazyme is a powerful tool for targeted gene regulation.

The aptatope on the receptor protein is responsible for the specific binding of the aptamer.

The aptatopes in the forest were a sight to behold.

The apterate aphid crawled slowly along the stem of the plant.

The museum has a collection of apterates.