Migrating roach have sharper eyesight
Published 3 April 2025 They eye of a roach with a large pupil (Photo: Kaj Hulthén) Roach that migrate between different lakes and water courses have larger pupils and better eyesight than roach that stay in one place. The adaptation makes it easier for the red-eyed freshwater migrants to find food in murky waters. This is shown in a large study from Lund University in Sweden. Animals’ eyes, just l
https://www.lunduniversity.lu.se/article/migrating-roach-have-sharper-eyesight - 2025-04-26