Images

Nikola Rodriguez exits the water after a successful sampling effort along the west coast of Hawai’i Island in September 2021. The fish will be processed and tested for the presence of ciguatoxins.

Bull elk roaming on the National Elk Refuge with the Teton Range in the background.   

Argentine black and white tegus (Salvator merianae) can survive the winter under semi-natural conditions well beyond their current invasive range.

Northern Rocky Mountain Science Center scientist Zachary Miller conducting routine maintenance on the Garden Wall Weather Station at Glacier National Park, Montana (elevation: 7,400 feet)

Outstanding in the Field Episode 11 Artwork with microphone and headset graphic overlaying image of brown bears in a river.

This image shows a male bighorn sheep with large horns.                         

Amy Vandergast (left) and Julia Smith (right) pose next to a rail crossing sign in Ventura County.

Bee nesting block with included image insert showing nesting hole occupied by a bee.

RestoreNet treatments include soil pits and connectivity modifiers (ConMods), seen here at a RestoreNet site in the Sonoran Desert.

Mesopredators play important ecological roles in most systems. This group of wildlife is often well-adapted to human development and their densities can vary according to the human-subsidized resources with trickle down effects on other animals.

This Picarro L2130-i Isotope and Gas Concentration Analyzer is housed at the USGS St. Petersburg Coastal and Marine Science Center.

This bald eagle was admitted to The Raptor Center in St. Paul, MN where it was determined by veterinarians to be poisoned by lead. The bowed head, drooped wings, and green stained tail feathers are all typical signs of lead poisoning of raptors.

Little is understood about the behavior, location, and habitat preferences of juvenile Gulf sturgeon. To learn more about this prehistoric fish, the Florida Cooperative Fish and Wildlife Research Unit at the University of Florida, the National Oceanic and Atmospheric Administration, and the U.S.

USGS scientist working on soil microcosms is using a dehalogenating culture being sampled in an anaerobic chamber.

Arizona Coop Unit Graduate Student Kaitlyn Gahl (sitting) and University of Arizona Undergraduate student Elizabeth EbadiRad implant transmitter into Smallmouth Bass-Redeye Bass hybrid to identify habitat use and movement patterns of select fish in an Arizona canyon.

This is an image of  the coloring page for the Disease Ecologist I Am A... episode.

Holding a Northern Pike captured from an Arizona Lake is Dr. Yuliya Kuzmenko.  She and Dr. Timofy Specivy, both scientists from the Ukraine, were hired by the Arizona Cooperative Fish and Wildlife Research Unit to work on a collaborative project with the Arizona Game and Fish Department to remove nuisance pike populations from select Arizona lakes.

Map of maximum uranium concentration at 206 spring and well sites in the Grand Canyon region.

Triple-high mist net in front of Half Dome. The net is used to capture bats as part of a study tracking bat movements in Yosemite National Park.

A California myotis with a transmitter, part of a study of bats in Yosemite National Park.

Field collection of surface soils from a burned watershed by USGS Contaminant Ecology Research Laboratory