Western three-spined stickleback Post author:Marco Colombo Post category:Freshwater Gasterosteus gymnurus territoriality Ticino Valley Regional Park, Lombardy Marco Colombo Naturalist, Photographer And Science Communicator: at first I loved. Then I observed. Finally I photographed You Might Also Like White-clawed crayfish May 18, 2024 Bluegill May 23, 2024 Apuan alpine newt May 28, 2024 Wels catfish May 26, 2024 Italian crested newt May 18, 2024 Common toads May 20, 2024