The horseshoe crab is a creature that has continued to live since ancient times.

This fish, known as a 'year fish', dies before even a year has passed since its birth.

He caught a big fish.

Looking down at the sea, I could see a school of fish swimming.

I ate a dish made from a fish known as 'shusseuo' for the first time.

He threw in a huge amount of money like a boat-swallowing fish to make the project successful.

This restaurant uses substitute fish when expensive types of fish are not available.

This carnivorous fish eats other small fish.

Reeves' shad is a fish commonly seen in rivers in Japan.

He tried to solve the problem all day long.