Nature Photos

Approaching in early morning fog, a big rutting bull elk displays a threat behavior as he walks through the grass in a frosty meadow. This behavior is often referred to as a "head-high threat" posture, where the elk orients his neck low and head high. This display is typically accompanied by flaring of the nostrils and grinding of the teeth.

Alaska arctic tundra: bearberry, crowberry, cranberry, bunchberry and caribou lichen.

A big buck whitetail deer stands in a forest with his head held high. This rutting buck had finished rubbing his antlers on a pine tree, which is pictured to the right of him.

Mt Saint Elias as seen from Icy Bay. At 18,008 feet, Mount Saint Elias is the fourth-highest peak in North America. It is also considered the highest coastal mountain in the world.

A bald eagle in descending flight.

A bald eagle vocalizes while descending toward the water.

A white ibis feeding at sunset.

A bull and cow elk on a hillside during late afternoon.

A big buck is alert to something to his right.

Florida birds, including snowy egrets, great egrets and little blue herons gathered in a shallow pond during a rainy morning.

A female osprey in hovering flight above her nest.

A humpback whale breaching (leaping from the water).

Rays of sunlight breaking through the forest edge during a foggy morning.

A green heron perched on a willow branch.

A rutting whitetail buck scent-marking a licking branch, which is located above a scrape.

An nine-point buck whitetail deer cautiously walks through a cut-over pine forest.

Mt. Redoubt volcano and the lower Kenai River at sunset.

A dock, Callis's Wharf and sunrise over Milford Haven as seen from Gwynn's Island, Virginia.

A large whitetail buck deer looking over his shoulder.

A double-crested cormorant with a freshly-caught fish.

A large bull elk stands adjacent to an emerald colored lake in the northern Rocky Mountains.

A bald eagle in flight with a dark sky in the background.

Alaska fireweed.

A red salmon (sockeye salmon) swimming across the shallows of an Alaskan river.