Aura River in Turku, Finland (© Jarmo Piironen/Alamy)

Domestic donkey feeding on cherry twigs (© Juniors Bildarchiv GmbH/Alamy)

Giant kelp in the Channel Islands National Marine Sanctuary, California (© Brandon Cole Images/Shutterstock)

Rumelihisarı on the Bosporus Strait at Istanbul, Türkiye (© Drone in Wonderland/Amazing Aerial Agency)

‘Umschreibung,’ a sculpture by artist Olafur Eliasson in Munich, Germany (© Manfred Bail/Alamy)

Hummock ice on Lake Peipus in Estonia (© Sven Zacek/Minden Pictures)

Bison in Wind Cave National Park, South Dakota (© Charlie Summers/Minden Pictures)

Breckenridge, Colorado (© Sean Pavone/Shutterstock)

Wool and mohair yarn (© Jurate Buiviene/Alamy)

Black Fell, Lake District, England (© Daniel Kay/Shutterstock)