This barracuda is very large.

The small fish are swimming in the river.

The small fish are swimming in the river.

This fossil is believed to be that of an ichthyosaur.

He took a photo using a fisheye lens.

There is a rumor that a fish with a human-like face lives in that pond.

You can find a 'tatsu no otoshigo' in this sea.

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.