plants in the Hortus Botanicus, Leiden

Sea ice near shore on a cove opening to the Atlantic Ocean in Newfoundland, Canada

Patterns of pancake ice on the nearshore saltwater off Fogo Island, Newfoundland, Canada

Shadows of an oak tree on the snow in Mecosta County, Michigan, USA

Cleaning a horn coral from Fossil & Prairie Park Preserve, Rockford, Iowa, USA

Central Michigan, USA

Cleaning gastropod fossil from Fossil & Prairie Park Preserve, Rockford, Iowa, USA

Ge digital camera

Tree shadows in April on a metal building in Michigan, USA

Small waterfall along the Dungeness River in, near the Upper Dungeness Trail in Olympic National Forest, Olympic Peninsula, Washington State, USA

Traces of intertidal creatures at low tide on Shi Shi Beach along the Pacific Ocean in Olympic National Park, Washington State, USA

Northern Maidenhair Fern, Adiantum pedatum, in Canadian Lakes in central Michigan, USA

Bubbles, created in winter by the photographer, rapidly form ice crystals on the inside surfaces, Michigan, USA,

Ice patterns in a dramatic winter landscape along Ísafjarðardjúp fjord near Ísafjörður in the Westfjords region, Iceland

Pearl Crescent, Phyciodes tharos, butterfly puddling in a high meadow in the Garnet Mountains, Montana, USA

Los Angeles Flower Market, California

Shadows of an oak tree on the snow in Mecosta County, Michigan, USA

Shadows of an oak tree on the snow in Mecosta County, Michigan, USA

Shadows of an oak tree on the snow in Mecosta County, Michigan, USA