Images

An unknown hybrid species of salamander captured in Olympic National Park, Washington.

Reseracher Maureen Ryan poses by a pond holding one of her study species, a cascades frog.

A Cascades frog peeks out of the water in Olympic National Park.

Forest cover being removed for cattle pasturage and development. Smoke from bulldozed trees is visible in background with cattle in the foreground.

USGS researchers Brome McCreary (orange vest) and Chris Pearl take measurements on Cascades frog at a mountain lake in Oregon.

Elk traveling across winter range in the northwestern Greater Yellowstone Ecosystem near the Gardiner River in Yellowstone National Park, 2008.

Elk traveling on winter range in the northwestern Greater Yellowstone Ecosystem after crossing the Madison River near Ennis, Montana, 2008.

Palila (Loxioides bailleui). Photo by USGS Pacific Island Ecosystems Research Center.

The ice froze around the fence post, the stage in the river went up, then the river froze again, creating a large gage height correction - Heart River near Richardton, North Dakota.

Blackside dace are a type of minnow with a red underbelly and a black stripe down their sides. They are found only in parts of Tennessee, Kentucky, and western Virginia. The image shows a school of Blackside dace.

Herring larvae 15 days post-hatch. Food in the gut appears orange.

Herring larvae 53 day post-hatch. Black pigmentation is evident.

Naturally-deposited herring eggs attached to submerged macrophytes. Coiled embryos are evident inside the eggs.

Wetlands Reserve Program site in Natchitoches Parish, Louisiana.  Ten years ago, this landowner worked with the USDA Natural Resources Conservation Service through the Wetlands Reserve Program to design and construct this slough as part of a plan to restore this field’s natural wetland hydrology.

Currently four age classes (0, 1, 2, and 4 year olds) of SPF herring are maintained at the Marrowstone Marine Field Station.

Small herring spawning event in Puget Sound, evidenced by the presence of 'white water', caused by mass release of spawning products into the water.

Culex species mosquito biting a human hand.

Erik Hofmeister, NWHC veterinarian and research scientist, holds a zebra finch, a species which serves as a laboratory model for study of avian diseases.

Team of scientists working together to insert a tracking device in a 14 foot Burmese python.

Back-lit photographs of wings of White-nose Syndrome (WNS)-positive little brown bats, one with subtle circular and irregular pale areas (arrows) indicating areas of fungal infection (A) and another bat (B) with areas of relatively normal tone and elasticity (black arrow), compared to a WNS affected area that looks like crumpled tissue paper with loss of elasticity,

Hibernating little brown bat with white muzzle typical of White-nose syndrome.