Close-up of Grey Squirrel (Sciurus carolinensis) on tree, Florida, USA

Close-up of Grey Squirrel (Sciurus carolinensis) on tree, Florida, USA

Close-up of Grey Squirrel (Sciurus carolinensis) on tree, Florida, USA

Close-up of Alpine marmot (Marmota marmota) on tree, Arizona, USA

Flower in the Desert Botanical Garden, Phoenix, Arizona, USA, close-up

Flowering cactus in the Desert Botanical Garden, Phoenix, Arizona, USA, close-up

Creosote bush (Larrea tridenta), Desert Botanical Garden, Phoenix, Arizona, USA, close-up

Flowering cactus in the Desert Botanical Garden, Phoenix, Arizona, USA, close-up

Red Squirrel (Tamiasciurus hudsonicus) eating, Denali National Park, USA, side view, close-up

Close-up of squirrel sitting on wooden log, Rocky Mountain National Park, Colorado, USA

Close-up of squirrel sitting on wooden log, Rocky Mountain National Park, Colorado, USA

Lizard sitting on a stone, Desert Botanical Garden, Phoenix, Arizona, USA, close-up

Close-up of squirrel sitting on wooden post, Rocky Mountain National Park, Colorado, USA

Antelope Canyon, Arizona, USA

Close-up of cliffs, Devil's Garden, Utah, USA

Antelope Canyon, Arizona, USA

Close-up of squirrel on rock, Arizona, USA