David Pattyn / Alpine marmot (Marmota marmota) carrying grass and other nesting material across snow to its nest while another one is on the lookout, Gran Paradiso National Park, Aosta Valley, Italy, April

Willi Rolfes/ BIA / Alpine Marmot (Marmota marmota) parent with young feeding, Hohe Tauern National Park, Austria

Willi Rolfes/ BIA / Alpine Marmot (Marmota marmota) feeding on flowers, Hohe Tauern National Park, Austria

Willi Rolfes/ BIA / Alpine Marmot (Marmota marmota) parent feeding with begging young, Hohe Tauern National Park, Austria

Willi Rolfes/ BIA / Alpine Marmot (Marmota marmota) parent with young feeding, Hohe Tauern National Park, Austria

Stephane Granzotto / Alpine marmot (Marmota marmota) standing alert outside burrow, takes fright and runs inside, Rhone-Alpes, France, July.

Cyril Ruoso / Alpine Marmot (Marmota marmota) portrait of a juvenile in alpine habitat, France

Cyril Ruoso / Alpine Marmot (Marmota marmota) two adults fighting for territory, France

Edwin Giesbers / Close-up of Alpine marmot (Marmota marmota) fur and eye, Hohe Tauern National Park, Austria, July

Edwin Giesbers / Alpine marmot (Marmota marmota) reaching hands upwards, Hohe Tauern National Park, Austria, July

Edwin Giesbers / Alpine marmot (Marmota marmota) eating, Hohe Tauern National Park, Austria, July

Edwin Giesbers / Alpine marmots (Marmota marmota) fighting, Hohe Tauern National Park, Austria, July