The edible frog is an unwanted addition to Ruissalo’s range of frog species December 2, 2019December 12, 2019 Heidi MetsäläKesä, Pienvedet
Even a small pond is full of fascinating predators December 2, 2019December 12, 2019 Heidi MetsäläKesä, Pienvedet
Baltic herring is an important link in the Baltic Sea food chain December 2, 2019 Heidi MetsäläKesä, Vedenalainen luonto
Grey seals can be spotted in the waters of Ruissalo as well December 2, 2019December 12, 2019 Heidi MetsäläKesä, Vedenalainen luonto
Birds increase the biodiversity of rugged islets December 2, 2019December 12, 2019 Heidi MetsäläKesä, Lintuluodot
The lesser black-backed gull is the most Finnish bird in the world December 2, 2019December 12, 2019 Heidi MetsäläKesä, Lintuluodot
White-tailed eagle – a prime example of successful conservation efforts December 2, 2019December 11, 2019 Heidi MetsäläKesä, Merenrantaniityt ja lahdet
Life in coastal meadows in the summer December 2, 2019December 11, 2019 Heidi MetsäläKesä, Merenrantaniityt ja lahdet