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

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

With their round bodies and bulging eyes ... in a tank where the water temperature is maintained at about 6 degrees. The aquarium won renown for breeding the fish over three generations.

Their eyesight has adapted to see better in air than in water, so to catch a partner’s eye, mudskippers dance ... To move on land, these fish have adapted 'shoulder' joints which, along with ...

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 ...