According to the law on specified alien species, the import of certain organisms is prohibited.

The study of benthos is an important field in marine biology.

We have a responsibility to protect the biodiversity of the Earth.

He always keeps in mind the phrase 'If one learns without thinking, it is a waste.'

He is an expert in ornithology, studying types of birds all over the world.

He is an expert in speleology and is exploring caves around the world.

He is majoring in meteorology at university.

He is passionate about his research in futurology.

He is majoring in analysis at university.

Let's eat lunch in the school cafeteria.