Roach fish that migrate between different lakes and water courses have larger pupils and better eyesight than roach that stay ...

Here are three of our most recent eye-catching stories ... The scaleless animal may look like any other fish species, but ...

Fish like roach that migrate between lakes and streams have larger eyes with bigger pupils, improving vision in low light.

Roach fish that migrate between different lakes and water courses have larger pupils and better eyesight than roach fish that stay in one place. The adaptation makes it easier for the red-eyed ...