Images

A threatened sicklefin redhorse from the Tennessee River.

Little brown bats in NY cave.

Aquatic plants typical of still waters, ponds, and shallow wetlands: duckweeds, water lettuce, and watermoss.

Aquatic ecosystems make a difference in the carbon cycle. The location in this photo is located near Beaver, Alaska approximately 100 miles north of Fairbanks.

Collecting a DNA sample from a native freshwater mussel's muscular foot.

The Wisconsin Cooperative Wildlife Research Unit (WCWRU) graduate student, Megan Jones, explains the ecology of small mammals at Thomson Prairie as part of a class field trip organized by WCWRU for the University of Wisconsin Grassland Ecology Class.

Two sets of tracks left by tiny sea turtle hatchlings when they emerged from their nests and crawled toward the sea during the night.

A set of tracks left by tiny sea turtle hatchlings when they emerged from their nests and crawled toward the sea during the night.

Multiple sets of tracks left by numerous sea turtle hatchlings when they emerged from their nests and crawled toward the sea during the night.

Two sets of tracks left by tiny sea turtle hatchlings when they emerged from their nests and crawled toward the sea during the night.

Research excavation of a loggerhead sea turtle nest (Caretta caretta) on a sandy Florida beach. The excavation is part of a county research program that keeps track of the number of nests (by species) - mostly loggerhead, a few greens, and an occasional leatherback.

Red morning sunrise on the Atlantic Ocean as seen from a barrier island.

A morning photo depicts evidence of a sea turtle nesting the previous night (from the sea, left; return to sea, right). The protective stakes mark a nest from an earlier week as part of a county research program that marks and records every eighth nest.

A morning photo depicts evidence of a sea turtle nesting the previous night (from the sea, left; return to sea, right). The protective stakes mark a nest from an earlier week as part of a county research program that marks and records every eighth nest.

A morning photo depicts evidence of a sea turtle nesting the previous night (from the sea, left; return to sea, right). The protective stakes mark a nest from an earlier week as part of a county research program that marks and records every eighth nest.

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.

Red morning sunrise on the Atlantic Ocean as seen from a barrier island. A sea turtle nest is on the beach.

A morning photo depicts evidence of a sea turtle nesting the previous night (from the sea, left; return to sea, right). The protective stakes mark a nest from an earlier week as part of a county research program that marks and records every eighth nest.

A morning photo depicts evidence of a sea turtle nesting the previous night (from the sea, left; return to sea, right). The protective stakes mark a nest from an earlier week as part of a county research program that marks and records every eighth nest.

A morning photo depicts evidence of a sea turtle nesting the previous night (from the sea, left; return to sea, right). The protective stakes mark a nest from an earlier week as part of a county research program that marks and records every eighth nest.