He is an expert in malacology, focusing particularly on the study of snails.

His painting is characterized by a pattern of concentric circles.

We will solve the problem in cooperation with our allies.

He is scheduled to have surgery for an aneurysm.

I ended up living together with him.

Climate change is a global issue.

There are many cognates in English and German.

He swung the flail around to drive away the enemies.

He repelled the enemy using the heavy rattan bow.

A tardigrade can survive in extreme environments.