He is an expert in tidology, conducting research on ocean tides.

He is majoring in tidal science.

E. coli is one of the bacteria that normally reside in the human intestine.

His personal strength is that he is very sincere.

Her family adopts a matriarchy.

The tundra swan lives in cold regions.

I saw a whooper swan in the park.

He is the editor in chief of this magazine.

The tyrant flycatcher is known for its beautiful plumage and unique call.

I always use binchotan charcoal when I grill meat.