An approximately 2 inch long monarch butterfly caterpillar or larva grazes on the leaves of a butterfly weed in a northern Virginia garden. The dark lumps on the leaves around the caterpillar are its droppings or feces.
Images
Explore photos, graphics, and illustrations related to projects from across the CASC Network. And be sure to check out our Climate Illustrations page, featuring free-to-download illustrations that help describe tricky climate concepts and explain how climate change affects the world around us.
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Monarch Caterpillar or Larva and Droppings
An approximately 2 inch long monarch butterfly caterpillar or larva grazes on the leaves of a butterfly weed in a northern Virginia garden. The dark lumps on the leaves around the caterpillar are its droppings or feces.
Atlantic Ocean Sunrise
Subtropical Atlantic Ocean sunrise with the dark clouds of a distant offshore thunderstorm.
Subtropical Atlantic Ocean sunrise with the dark clouds of a distant offshore thunderstorm.
Low Tide Beach at Dawn
Florida beach at low tide. Note the sandbar and sculpted sands in the intertidal zone.
Florida beach at low tide. Note the sandbar and sculpted sands in the intertidal zone.
Forest Roads in the Lower North Fork Siletz River Valley
Forest Roads in the Lower North Fork Siletz River ValleyForest roads running through Bureau of Land Management land in the lower North Fork Siletz River valley in the Mary's Peak District of the northwest Oregon.
Forest Roads in the Lower North Fork Siletz River Valley
Forest Roads in the Lower North Fork Siletz River ValleyForest roads running through Bureau of Land Management land in the lower North Fork Siletz River valley in the Mary's Peak District of the northwest Oregon.
A bridge over the Matanuska River
Scenic view of the Matanuska River with a bridge spanning across. This photo was part of an erosion project on the river.
Scenic view of the Matanuska River with a bridge spanning across. This photo was part of an erosion project on the river.
Mud Lake Channel Arrowwood National Wildlife Refuge
Mud Lake Channel Arrowwood National Wildlife RefugeMud Lake Channel from Arrowwood Lake to Jim Lake, looking toward Arrowwood Lake. Photograph taken from 11th Street SE between Edmunds, North Dakota, and State Highway 9. The downstream Jamestown Reservoir was filled in 1965 and backed water onto the Arrowwood National Wildlife Refuge, preventing ideal management in most years.
Mud Lake Channel Arrowwood National Wildlife Refuge
Mud Lake Channel Arrowwood National Wildlife RefugeMud Lake Channel from Arrowwood Lake to Jim Lake, looking toward Arrowwood Lake. Photograph taken from 11th Street SE between Edmunds, North Dakota, and State Highway 9. The downstream Jamestown Reservoir was filled in 1965 and backed water onto the Arrowwood National Wildlife Refuge, preventing ideal management in most years.
Caribbean Sunset in the British Virgin Islands
Caribbean sunset as seen from the British Virgin Islands.
Caribbean sunset as seen from the British Virgin Islands.
Sheltering Caribbean Headland
Golden early morning sunlight on a dry, rocky headland. Note the pelican, the cacti, and the xeric vegetation.
Golden early morning sunlight on a dry, rocky headland. Note the pelican, the cacti, and the xeric vegetation.
Freshwater tidal marshes of the Columbia River estuary, Oregon
Freshwater tidal marshes of the Columbia River estuary, OregonFreshwater tidal marsh of the Columbia River estuary, Cathlamet Bay in foreground, uplifted coastal ranges of the Cascadia forearc of Washington in background.
Freshwater tidal marshes of the Columbia River estuary, Oregon
Freshwater tidal marshes of the Columbia River estuary, OregonFreshwater tidal marsh of the Columbia River estuary, Cathlamet Bay in foreground, uplifted coastal ranges of the Cascadia forearc of Washington in background.
Cattle on rangeland on Mission Peak, near Fremont, CA.
Cattle on rangeland on Mission Peak, near Fremont, CA.Cattle on rangeland on Mission Peak, near Fremont, California, in the San Francisco Bay area. David Amme, California Native Grasslands Association.
Cattle on rangeland on Mission Peak, near Fremont, CA.
Cattle on rangeland on Mission Peak, near Fremont, CA.Cattle on rangeland on Mission Peak, near Fremont, California, in the San Francisco Bay area. David Amme, California Native Grasslands Association.
Wood Duck (Aix sponsa)
Brightly-colored male wood duck.
Brightly-colored male wood duck.
Fish and coral in Tumon Bay Marine Reserve, Guam
Underwater photograph of Tumon Bay Marine Reserve, Guam, showing some of the amazing biologic diversity of coral reefs.
Underwater photograph of Tumon Bay Marine Reserve, Guam, showing some of the amazing biologic diversity of coral reefs.
An Endangered Red Hawksbill Sea Turtle Swims Over a Threatened Elkhorn Coral in Virgin Islands National Park
An Endangered Red Hawksbill Sea Turtle Swims Over a Threatened Elkhorn Coral in Virgin Islands National ParkThis photo shows an endangered hawksbill (Eretmochelys imbricata) swimming over a colony of elkhorn coral (Acropora palmata).
USGS scientists are doing research on sea turtles and corals in Florida and the US Virgin Islands.
An Endangered Red Hawksbill Sea Turtle Swims Over a Threatened Elkhorn Coral in Virgin Islands National Park
An Endangered Red Hawksbill Sea Turtle Swims Over a Threatened Elkhorn Coral in Virgin Islands National ParkThis photo shows an endangered hawksbill (Eretmochelys imbricata) swimming over a colony of elkhorn coral (Acropora palmata).
USGS scientists are doing research on sea turtles and corals in Florida and the US Virgin Islands.
Golden aspen, Jemez Mountains, NM.
Golden aspen, Jemez Mountains, NM.
Eaton holding a slender-snouted crocodile (Mecistops cataphractus)
Eaton holding a slender-snouted crocodile (Mecistops cataphractus)While surveying for African dwarf crocodiles (Osteolaemus tetraspis) on the Djidji River in Gabon’s Ivindo NP as part of my Ph.D. research (2007), Eaton pulled this 2.4 m slender-snouted crocodile (Mecistops cataphractus) from a fishing net in which it became entangled while trying to steal a fish. (credit – M. Eaton)
Eaton holding a slender-snouted crocodile (Mecistops cataphractus)
Eaton holding a slender-snouted crocodile (Mecistops cataphractus)While surveying for African dwarf crocodiles (Osteolaemus tetraspis) on the Djidji River in Gabon’s Ivindo NP as part of my Ph.D. research (2007), Eaton pulled this 2.4 m slender-snouted crocodile (Mecistops cataphractus) from a fishing net in which it became entangled while trying to steal a fish. (credit – M. Eaton)
Blue Ridge Parkway in Autumn
A section of the Blue Ridge Parkway in North Carolina with many fall colors underway.
A section of the Blue Ridge Parkway in North Carolina with many fall colors underway.
Wildlife and Agricultural Wetlands
A diversity of birds forage for small fish and invertebrates on fallow fields throughout the year.
A diversity of birds forage for small fish and invertebrates on fallow fields throughout the year.
Delaney Creek
Delaney Creek, Yosemite National Park
Center pivot irrigation system watering a cornfield in Arizona
Center pivot irrigation system watering a cornfield in ArizonaCenter pivot irrigation system watering a cornfield in Arizona
Center pivot irrigation system watering a cornfield in Arizona
Center pivot irrigation system watering a cornfield in ArizonaCenter pivot irrigation system watering a cornfield in Arizona
View of a Managed Pond
The trees between the pond and the field are trees along a running creek. The pond had mixed vegetation (native and nonnative) restored along its edge as a runoff buffer.
The trees between the pond and the field are trees along a running creek. The pond had mixed vegetation (native and nonnative) restored along its edge as a runoff buffer.
Haleakala Silversword
Haleakala silversword, Argyroxyphium sandwicense subsp. macrocephalum, in bloom, with Haleakala Volcano crater in background.
Haleakala silversword, Argyroxyphium sandwicense subsp. macrocephalum, in bloom, with Haleakala Volcano crater in background.