Deep-sea fish have undergone various evolutions due to the harshness of their habitat.

The smalltooth sand tiger is a rare fish that lives in the deep sea.

This flower is very rare.

Creatures in the deep sea are living, adapted to its harsh environment.

This forest is a habitation for many animals.

Many types of animals inhabit this forest.

He caught a big fish.

I buy fresh fish at the fish market every week.

I achieved a big success.

The Japanese giant salamander is an endemic species in Japan and the largest amphibian in the world.