Luna Moth Luna moth (Actias luna) Date: 04/10/08 Luna moth (Actias luna)

bbum Flickr photo (Creative Commons)
Cinnabar Moth Cinnabar moth (Tyria jacobaeae) Date: 06/02/07 Cinnabar moth (Tyria jacobaeae)

nutmeg66 Flickr photo (Creative Commons)
Jersey Tiger Moth Jersey Tiger Moth Date: 08/08/06 Jersey Tiger Moth (Panaxia quadripunctaria)


george1652 Flickr photo (Creative Commons)
Tortoises in the San Diego Zoo Tortoises in the San Diego Zoo Date: 03/06/06 Tortoises in the San Diego Zoo
Tidepool on the Southern California Coastline Many creatures take refuge in the rocky tidepools. Date: 03/07/06 Many creatures take refuge in the rocky tidepools.
The Blue Marble Photo of the Earth taken by Apollo 17 including Africa and the Arabian Penninsula Date: 04/15/08 Photo of the Earth taken by Apollo 17 astronauts on December 7, 1972 during their moon mission.
Rainforest of Glacier Bay in Alaska Rainforest of Glacier Bay in Alaska Date: 04/17/08 Rainforest of Glacier Bay in Alaska

Photographer: Bruce Molnia

US Geological Survey
Prickly Pear Cactus Prickly Pear cactus Date: 04/17/08 Prickly Pear cactus

Photographer: Christopher Keane

American Geological Institute
Sonoran Desert cacti Cacti such as the tall saguaro and prickly cholla are characteristic of the upper reaches of the Sonoran Desert. Black Mountain is in the background. Date: 04/17/08 Cacti such as the tall saguaro and pricly cholla are characteristic of the upper reaches of the Sonoran Desert. Black Mountain is in the background.

Photograph: Thomas McGuire
Waterton Lakes This is the head of one of the Waterton Lakes. Here, where the majestic Rocky Mountains rise suddenly out of the rolling prairies, is found amid the peaks, the lakes of Waterton Lakes National Park carved out of the rock by ancient glaciers. Alberta's Wat Date: 04/17/08 This is the head of one of the Waterton Lakes. Here, where the majestic Rocky Mountains rise suddenly out of the rolling prairies, is found amid the peaks, the lakes of Waterton Lakes National Park carved out of the rock by ancient glaciers. Alberta's Waterton Lakes National Park borders Glacier National Park in Montana to the south, and together they make up the Waterton-Glacier International Peace Park, the first of its kind in the world.

Photographer: Roger Slatt

University of Oklahoma
Point Source Water Pollution Point source water pollution. Date: 04/17/08 Point source water pollution.

Photo: Environmental Protection Agency.
Peruvian altiplano The Peruvian altiplano is a high plateau ranging in altitude from 3500 to over 4000 meters above sea level. Though the altiplano is a cold, harsh environment, large herds of hardy llamas such as these hint at the richness of South America's high grassland Date: 04/17/08 The Peruvian altiplano is a high plateau ranging in altitude from 3500 to over 4000 meters above sea level. Though the altiplano is a cold, harsh environment, large herds of hardy llamas such as these hint at the richness of South America's high grasslands. The Quelccaya ice cap rises in the background, 55 square kilometers of ice that provides important clues on climatic change and variability in the South American tropics. The ice sheet's summit elevation is 5670 meters and its maximum summit thickness is 164 meters.

Photographer: NOAA National Oceanic and Atmospheric Administration
Mangroves Mangrove roots serve as critical habitat for many species and nutrient filters. Date: 04/17/08 Mangrove roots serve as critical habitat for many species and nutrient filters.

Photographer: NOAA National Oceanic and Atmospheric Administration
Wind Power Generators This area in Tehachapi, California is one of the world's leading wind energy producers. Prevailing northwesterly winds blow through passes in the Tehachapi Mountains that connect the San Joaquin Valley with the Mojave Desert. The best winds occur from Mar Date: 04/17/08 This area in Tehachapi, California is one of the world's leading wind energy producers. Prevailing northwesterly winds blow through passes in the Tehachapi Mountains that connect the San Joaquin Valley with the Mojave Desert. The best winds occur from March to September, averaging 15-20 miles per hour. As the size of the generators has increased, cost per kilowatt hour generated has decreased. Current costs are around 3.5 to 4 cents per kilowatt hour, less expensive than coal, oil, nuclear and most natural gas-fired generation. Tehachapi's roughly 5,000 wind plants offset the emission of more than seven million pounds of sulfur oxides, nitrogen oxides, and particulates that otherwise would be produced by relatively clean burning natural gas. They also offset 1.1 billion pounds of greenhouse gases each year.

Photographer: Michael Collier
Tundra wildfire Tundra wildfire caused by lightning Kugruk River Valley summer of 1977. Northeast Seward Penninsula, Alaska. Date: 04/17/08 Tundra wildfire caused by lightning Kugruk River Valley summer of 1977. Northeast Seward Penninsula, Alaska.

Photographer: Travis Hudson American Geological Institute
Clearcut forest Clear-cut forest. Date: 04/17/08 Clear-cut forest.

Photographer: Marli Miller, University of Oregon
Wildfire Image from the Bitterroot National Forest in Montana during August of 2000. The picture shows two elk standing in a stream seeking shelter from the rapidly-spreading flames. The fires here merged with the Mussigbrod wildfires to burn more than 247,000 acr Date: 04/17/08 Image from the Bitterroot National Forest in Montana during August of 2000. The picture shows two elk standing in a stream seeking shelter from the rapidly-spreading flames. The fires here merged with the Mussigbrod wildfires to burn more than 247,000 acres.

Photographer: John McColgan, BLM Alaska Fire Service
Oregon sea coast Sea coast at Oregon. Date: 04/17/08 Sea coast at Oregon.

Photographer: Albert Copley Oklahoma, University Archives
Great Barrier Reef corals Corals of the Great Barrier Reef. Date: 04/17/08 Corals of the Great Barrier Reef.

Photographer: Abi Howe, American Geological Institute.
Paradise Bay ice floe Paradise Bay is a notch in Antarctica's Trinity Peninsula and is guarded by two islands that separate it from Gerlache Strait and the much larger Anvers Island. Date: 04/17/08 Paradise Bay is a notch in Antarctica's Trinity Peninsula and is guarded by two islands that separate it from Gerlache Strait and the much larger Anvers Island.

Photographer: Michael Collier
Coral reef One of the main reasons why coral reefs attract so many diverse organisms is because of the abundant food supply that the reef provides. The small fish (herbivores) that feed on the algae (autotrophs) within the coral, attract larger fish (primary carnivo Date: 04/17/08 One of the main reasons why coral reefs attract so many diverse organisms is because of the abundant food supply that the reef provides. The small fish (herbivores) that feed on the algae (autotrophs) within the coral, attract larger fish (primary carnivores), such as those in this slide.

Photographer: NOAA, National Oceanic and Atmospheric Administration
Starfish and anemones This photograph of a starfish and anemones in a cold water rocky community was taken in February of 1988 off the coast of Massachusetts. Date: 04/17/08 This photograph of a starfish and anemones in a cold water rocky community was taken in February of 1988 off the coast of Massachusetts.

Photographer: NOAA, National Oceanic and Atmospheric Administration
Brain coral The lights of the camera bring out the brilliant colors of the reef. The brain coral serves as a focus for this thriving reef community. Date: 04/17/08 The lights of the camera bring out the brilliant colors of the reef. The brain coral serves as a focus for this thriving reef community.

Photographer: NOAA, National Oceanic and Atmospheric Administration
Snowmelt waterfall A view of meltwater cascading over Proterozoic sedimentary rocks in Montana's Glacier National Park. Date: 04/17/08 A view of meltwater cascading over Proterozoic sedimentary rocks in Montana's Glacier National Park.

Photographer: Larry Fellows
Nantucket marshland Marshland in Nantucket. Date: 04/17/08 Marshland in Nantucket.

Photographer: Cindy Martinez, American Geological Institute.
Water quality survey Survey of water quality in a mine water filtration pond. Date: 04/17/08 Survey of water quality in a mine water filtration pond.

Photographer: Ron Nichols, National Resources Conservation Service, USDA
Cypress swamp Cypress swamp at Horseshoe Lake. Date: 04/17/08 Cypress swamp at Horseshoe Lake.

Photographer: Christopher Keane, American Geological Institute.
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