U.S. Geological Survey:
Frozen Methane Bubbles
U.S. Geological Survey:
An Endangered Creeper
U.S. Geological Survey:
Black-Bellied Salamander
U.S. Geological Survey:
Rice Field Sediment Sampling
U.S. Geological Survey:
Infrared Wolves
U.S. Geological Survey:
The Bison
U.S. Geological Survey:
Sunset Over Blue Lake
U.S. Geological Survey:
Dowitcher Sleeping
U.S. Geological Survey:
Chelostoma rapunculi
U.S. Geological Survey:
Bighead Carp
U.S. Geological Survey:
Asian Swamp Eels
U.S. Geological Survey:
Look deep, deeeeep into my eyes
U.S. Geological Survey:
Bloop, Bloop
U.S. Geological Survey:
Hyena
U.S. Geological Survey:
Happy Monday!
U.S. Geological Survey:
Curious Fellow
U.S. Geological Survey:
Saddleback Caterpillar
U.S. Geological Survey:
Dinosaur Tracks
U.S. Geological Survey:
Lasioglossum accuminatum
U.S. Geological Survey:
Happy National Donald Duck Day
U.S. Geological Survey:
TURTLES!!!
U.S. Geological Survey:
JASON vs WALL-E
U.S. Geological Survey:
National Pollinator Week
U.S. Geological Survey:
Grand Tetons
U.S. Geological Survey:
The Social Network
U.S. Geological Survey:
Two-Faced Bee?
U.S. Geological Survey:
Coyote
U.S. Geological Survey:
Hurricanes, Pyrotechnics, Raptors and Fish
U.S. Geological Survey:
Foxy Hunter
U.S. Geological Survey:
Frosted Flatwoods Salamander