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See our science through the images below.

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A young songbird in a tree
Fledgling Arctic Warbler on the Seward Peninsula, Alaska
Fledgling Arctic Warbler on the Seward Peninsula, Alaska
Fledgling Arctic Warbler on the Seward Peninsula, Alaska

Fledgling Arctic Warbler on the Seward Peninsula, Alaska. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.

Fledgling Arctic Warbler on the Seward Peninsula, Alaska. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.

Image: Iiwi on Mamane
Iiwi on Mamane
Iiwi on Mamane
Iiwi on Mamane

The Hawaiian ‘I‘iwi, a native forest bird species only found in the Hawaiian Islands. 

The Hawaiian ‘I‘iwi, a native forest bird species only found in the Hawaiian Islands. 

Mark J. Henderson
Mark J. Henderson
Mark J. Henderson
Mark J. Henderson

Mark Henderson recently started as the Unit Leader for the USGS Vermont Cooperative Fish and Wildlife Research Unit at the University of Vermont. Prior to joining the Vermont Cooperative Research Unit, he was the acting unit leader at the California Cooperative Research Unit for six years.



Mark Henderson recently started as the Unit Leader for the USGS Vermont Cooperative Fish and Wildlife Research Unit at the University of Vermont. Prior to joining the Vermont Cooperative Research Unit, he was the acting unit leader at the California Cooperative Research Unit for six years.



Photo of honey bee laden with pollen
Honey bee laden with pollen
Honey bee laden with pollen
Honey bee laden with pollen

Honey bee laden with pollen.  Northern Prairie Wildlife Research Center has developed a genetic sequencing strategy to identify bee-collected pollen. 

Honey bee laden with pollen.  Northern Prairie Wildlife Research Center has developed a genetic sequencing strategy to identify bee-collected pollen. 

Image: Pallid Sturgeon Free Embryo
Pallid Sturgeon Free Embryo
Pallid Sturgeon Free Embryo
Pallid Sturgeon Free Embryo

Newly hatched pallid sturgeon free embryo.  On average, pallid sturgeon hatch between 7 to 9 millimeters (about 0.25 to 0.35 inch).

Newly hatched pallid sturgeon free embryo.  On average, pallid sturgeon hatch between 7 to 9 millimeters (about 0.25 to 0.35 inch).

Image: Pallid Sturgeon Embryos
Pallid Sturgeon Embryos
Pallid Sturgeon Embryos
Pallid Sturgeon Embryos

Well-developed pallid sturgeon embryos can be seen approximately four days after fertilization. 

Well-developed pallid sturgeon embryos can be seen approximately four days after fertilization. 

Image: Pallid Sturgeon Embryos
Pallid Sturgeon Embryos
Pallid Sturgeon Embryos
Pallid Sturgeon Embryos

The neural plate or primitive streak of developing pallid sturgeon embryos can be seen 2 days after fertilization. 

The neural plate or primitive streak of developing pallid sturgeon embryos can be seen 2 days after fertilization. 

Image: Fertilized Pallid Sturgeon Eggs
Fertilized Pallid Sturgeon Eggs
Fertilized Pallid Sturgeon Eggs
Fertilized Pallid Sturgeon Eggs

Pallid sturgeon embryos approximately 8 hours after fertilization.

Image: The Human Side of Things
The Human Side of Things
The Human Side of Things
The Human Side of Things

Angler catches a fish during a Panfish Fishing Tournament on June 6, 2015 on Brownlee Reservoir in Oregon. Fish serve as an important recreational, commercial, and cultural resource in the United States and Canada. Credit: Baker County Tourism

Angler catches a fish during a Panfish Fishing Tournament on June 6, 2015 on Brownlee Reservoir in Oregon. Fish serve as an important recreational, commercial, and cultural resource in the United States and Canada. Credit: Baker County Tourism

Two white geese and a brown goose fighting over nesting territory
Snow geese and Black Brant fight over nesting territories
Snow geese and Black Brant fight over nesting territories
Snow geese and Black Brant fight over nesting territories

Two snow geese and a single black brant goose fight over nesting territories on the Colville River Delta in Alaska.

Image: Biologists Collecting Biological Samples from Grizzly Bear
Biologists Collecting Biological Samples from Grizzly Bear
Biologists Collecting Biological Samples from Grizzly Bear
Biologists Collecting Biological Samples from Grizzly Bear

USGS biologists collecting biological information from a grizzly bear they have captured. Biologists collect hair samples for genetic analysis, weigh the bear, and gather numerous measurements of the body, such as the head, paws, claws, teeth, etc. Overall condition of the bear is assessed as well, including a body fat measurement.

USGS biologists collecting biological information from a grizzly bear they have captured. Biologists collect hair samples for genetic analysis, weigh the bear, and gather numerous measurements of the body, such as the head, paws, claws, teeth, etc. Overall condition of the bear is assessed as well, including a body fat measurement.

Douglas-fir trees topped to create snags for wildlife
Douglas-fir trees topped to create snags for wildlife habitat
Douglas-fir trees topped to create snags for wildlife habitat
Douglas-fir trees topped to create snags for wildlife habitat

Snags provide habitat for a wide range of organisms from cavity-nesting birds to insects, and are critical for maintaining forest biodiversity. Resource managers can create snags by topping trees to mitigate loss of snags to timber harvest, but information regarding changes in habitat for snag-dependent wildlife over time as created snags decay is lacking.

Snags provide habitat for a wide range of organisms from cavity-nesting birds to insects, and are critical for maintaining forest biodiversity. Resource managers can create snags by topping trees to mitigate loss of snags to timber harvest, but information regarding changes in habitat for snag-dependent wildlife over time as created snags decay is lacking.

Image: Pallid Sturgeon Larvae
Pallid Sturgeon Larvae
Pallid Sturgeon Larvae
Pallid Sturgeon Larvae

Pallid sturgeon larvae at 14 days post hatch. On agerage, pallid sturgeon transition to active feeding at approximately 16 to 18 millimeters (about 0.7 inch).

Pallid sturgeon larvae at 14 days post hatch. On agerage, pallid sturgeon transition to active feeding at approximately 16 to 18 millimeters (about 0.7 inch).

Image: Pallid Sturgeon Free Embryo
Pallid Sturgeon Free Embryo
Pallid Sturgeon Free Embryo
Pallid Sturgeon Free Embryo

Pallid sturgeon free embryo at 2 days post hatch.  At two days after hatching the free embryos are generally 9 to 11 millimeters (0.35 to 0.45 inch).

Pallid sturgeon free embryo at 2 days post hatch.  At two days after hatching the free embryos are generally 9 to 11 millimeters (0.35 to 0.45 inch).

Northern spotted owl perched on a tree branch
Spotted owl (Strix occidentalis)
Spotted owl (Strix occidentalis)
Spotted owl (Strix occidentalis)

Northern spotted owls (Strix occidentalis caurina) are mostly non-migratory, long-lived birds whose populations have declined in mature forests of western North America.

Northern spotted owls (Strix occidentalis caurina) are mostly non-migratory, long-lived birds whose populations have declined in mature forests of western North America.

Image: Giant African Land Snail
Giant African Land Snail
Giant African Land Snail
Giant African Land Snail

A large giant African land snail sitting on a gloved hand.  The snail is approximately 8 inches long and covers the entire hand.  

A large giant African land snail sitting on a gloved hand.  The snail is approximately 8 inches long and covers the entire hand.  

Image: Maine Cooperative Fish and Wildlife Research Unit Pollinator Research
Maine Cooperative Fish and Wildlife Research Unit Pollinator Research
Maine Cooperative Fish and Wildlife Research Unit Pollinator Research
Maine Cooperative Fish and Wildlife Research Unit Pollinator Research

Powerline sites with the  trap arrangement (small bowls with soapy water hanging from a frame; the bees are attracted to and get entrapped in the water).

Image: Bee Trap
Bee Trap
Bee Trap
Bee Trap

Researchers emptying a set of traps. The team uses a hand-net to capture larger bees observed along the transects. The same approach is used in the non-powerline land cover types to survey bees in those land covers.

Researchers emptying a set of traps. The team uses a hand-net to capture larger bees observed along the transects. The same approach is used in the non-powerline land cover types to survey bees in those land covers.

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