Tim Fitzharris / Joshua Tree (Yucca brevifolia) group and boulders, Joshua Tree National Park, California

Tim Fitzharris / Saguaro (Carnegiea gigantea) cactus, Neale Mesa and Aquarius Mountains, Arizona

Tim Fitzharris / Forest and mountains in autumn, San Juan Mountains, Colorado

Tim Fitzharris / Pine (Pinus sp), ancient tree at night, Mount Scott, Wichita Mountains National Wildlife Refuge, Oklahoma, digital composite

Tim Fitzharris / Seastacks and moon, Ruby Beach, Olympic National Park, Washington, digital composite

Tim Fitzharris / Twilight on Bridalveil Falls and Merced River, Yosemite National Park, California

Tim Fitzharris / Giant Sequoia (Sequoiadendron giganteum) forest at sunrise, Merced Grove, Yosemite National Park, California

Tim Fitzharris / Twilight on Bridalveil Falls and Merced River, Yosemite National Park, California

Tim Fitzharris / Giant Sequoia (Sequoiadendron giganteum) forest at sunrise, Merced Grove, Yosemite National Park, California

Tim Fitzharris / Sierra Nevada, Alabama Hills, California

Tim Fitzharris / Wildflowers and cacti, Caprock Canyons State Park, Texas

Tim Fitzharris / Rock arch, Atuh Beach, Nusa Penida, Bali, Indonesia

Tim Fitzharris / Ruby-throated Hummingbird (Archilochus colubris) females feeding on flower nectar, Texas

Tim Fitzharris / Ruby-throated Hummingbird (Archilochus colubris) female and Bumblebee (Bombus sp) flying, Arkansas

Tim Fitzharris / Atlantic Sailfish (Istiophorus albicans) and Magnificent Frigatebird (Fregata magnificens) flock hunting Round Sardinella (Sardinella aurita) school, Isla Mujeres, Mexico

Tim Fitzharris / Atlantic Sailfish (Istiophorus albicans) group hunting Round Sardinella (Sardinella aurita) school, Isla Mujeres, Mexico

Tim Fitzharris / Atlantic Sailfish (Istiophorus albicans) pair hunting Round Sardinella (Sardinella aurita) school, Isla Mujeres, Mexico

Tim Fitzharris / West Indian Manatee (Trichechus manatus) group, North America

Tim Fitzharris / Grand Tetons from Schwabacher Landing, Grand Teton National Park, Wyoming

Tim Fitzharris / Butterflyfish (Chaetodon sp) and Sergeant Major Damselfish (Abudefduf saxatilis) school, Negros Oriental, Philippines

Tim Fitzharris / Parrotfish (Scaridae), Wrasse (Labridae), and Sergeant Major Damselfish (Abudefduf saxatilis) school, Balicasag Island, Philippines

Tim Fitzharris / Conifers and Lower Yellowstone Falls, Yellowstone River, Grand Canyon of Yellowstone, Yellowstone National Park, Wyoming

Tim Fitzharris / Peaks, Sundance Range, Vermilion Lakes, Banff National Park, Alberta, Canada

Tim Fitzharris / Peaks, Sundance Range, Vermilion Lakes, Banff National Park, Alberta, Canada

Tim Fitzharris / Marsh, Two Medicine Lake, Glacier National Park, Montana

Tim Fitzharris / Rising Wolf Mountain, Glacier National Park, Montana

Tim Fitzharris / Syncline Ridge and Miette Range from Moberly Flats, Jasper National Park, Alberta, Canada

Tim Fitzharris / Sofa Mountain, Waterton Lakes National Park, Alberta, Canada

Tim Fitzharris / Taiga and peaks, Sundance Range, Vermilion Lakes, Banff National Park, Alberta, Canada

Tim Fitzharris / Pyramid Mountain from Pyramid Lake, Jasper National Park, Alberta, Canada

Tim Fitzharris / Trident Range from Pyramid Lake, Jasper National Park, Alberta, Canada

Tim Fitzharris / Syncline Ridge and Miette Range from Moberly Flats, Jasper National Park, Alberta, Canada

Tim Fitzharris / Grand Tetons from String Lake, Grand Teton National Park, Wyoming

Tim Fitzharris / Crowfoot Mountains and Bow Lake, Icefields Parkway, Rocky Mountains, Alberta, Canada

Tim Fitzharris / Sumatran Orangutan (Pongo abelii) male, native to Sumatra

Tim Fitzharris / Western Juniper (Juniperus occidentalis) and Jeffrey Pine (Pinus jeffreyi) trees, Phipps Peak, Eldorado National Forest, California

Tim Fitzharris / Dana Plateau from Ellery Lake, Sierra Nevada, Inyo National Forest, California

Tim Fitzharris / Dana Plateau from Ellery Lake, Sierra Nevada, Inyo National Forest, California

Tim Fitzharris / Yosemite Falls reflected in flooded Cook's Meadow, Yosemite Valley, Yosemite National Park, California

Tim Fitzharris / Yosemite Falls reflected in flooded Cook's Meadow, Yosemite Valley, Yosemite National Park, California

Tim Fitzharris / Rhododendron (Rhododendron sp) flowers and Coast Redwood (Sequoia sempervirens) trees in fog, Redwood National Park, California

Tim Fitzharris / Paintbrush (Castilleja sp) and Seaside Fleabane (Erigeron glaucus) flowering on coast, Garrapata State Beach, Big Sur, California

Tim Fitzharris / Milky Way over Bridal Veil Falls, Yosemite Valley, Yosemite National Park, California

Tim Fitzharris / Sunrise over Half Dome, Yosemite Valley, Yosemite National Park, California

Tim Fitzharris / Half Dome reflecting in Merced River, Yosemite National Park, California

Tim Fitzharris / Sunrise over Half Dome, Yosemite Valley, Yosemite National Park, California

Tim Fitzharris / Arch and Milky Way, Alabama Hills, Sierra Nevada, California

Tim Fitzharris / Arch on beach, El Matador State Beach, California