Jussi Murtosaari / Goldeneye (Bucephala clangula) with chicks swimming behind, Helsinki, Uusimaa, Finland, May.

Jussi Murtosaari / Green-veined white butterfly (Pieris napi) in flight, Jyvaskyla, Keski-Finland / Central Finland, Finland, September.

Jussi Murtosaari / Apollo butterfly (Parnassius apollo) in flight, Foglo, Ahvenanmaa / Aland Islands, Finland, July.

Jussi Murtosaari / Muskrat (Ondatra zibethicus) Espoo, Uusimaa, Finland, May. Introduced species.

Jussi Murtosaari / Scarce tortoiseshell butterfly (Nymphalis xanthomelas) on pussy willow, Luhanka, Keski-Finland, April. / Central Finland, Finland, April.

Jussi Murtosaari / Yellow-necked mouse (Apodemus flavicollis) Joutsa, Keski-Finland, March. / Central Finland, Finland, March.

Jussi Murtosaari / Yellow-necked mouse (Apodemus flavicollis) peering out of undergrowth, Joutsa, Keski-Finland, March. / Central Finland, Finland, March.

Jussi Murtosaari / Red-throated pipit (Anthus cervinus) on algae at waters edge, Uto, Lounais-Finland / South-Western Finland, Finland, May.

Jussi Murtosaari / Northern shoveler (Anas clypeata) female, Uto, Lounais-Finland / South-Western Finland, Finland, May.

Jussi Murtosaari / Northern shoveler (Anas clypeata) male, Uto, Lounais-Finland / South-Western Finland, Finland, May.

Jussi Murtosaari / Common hawker dragonfly (Aeshna juncea) pair mating, Isojarvi National Park, Keski-Finland / Central Finland, Finland, July.

Jussi Murtosaari / European adder (Vipera berus) pair mating, Joutsa, Keski-Finland / Central Finland, Finland, May.