Queen angelfish swimming in an aquarium.
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Queen Angelfish (Holacanthus ciliaris)
Queen angelfish swimming in an aquarium.
Queen Angelfish (Holacanthus ciliaris)
Queen angelfish swimming in an aquarium.
Queen angelfish swimming in an aquarium.
Brewer's Sparrow Being Assessed
John Warzybok assesses a Brewer's sparrow (Spizella breweri) at White Sands Missile Range, New Mexico.
John Warzybok assesses a Brewer's sparrow (Spizella breweri) at White Sands Missile Range, New Mexico.
Bagged Brewer's Sparrows
Sampling bags holding Brewer's sparrows (Spizella breweri), White Sands Missile Range, New Mexico.
Sampling bags holding Brewer's sparrows (Spizella breweri), White Sands Missile Range, New Mexico.
Dead Fish Near Pool as River Dries Up
The Río Nigua at Camp Santiago flowed for 4 months and this 40 cm long fish moved into the flowing section. The river no longer flows and only pools remain. This location is about 17º59'50"N, 66º17'15"W and the elevation is 15 m.
The Río Nigua at Camp Santiago flowed for 4 months and this 40 cm long fish moved into the flowing section. The river no longer flows and only pools remain. This location is about 17º59'50"N, 66º17'15"W and the elevation is 15 m.
Dead Fish Near Pool as River Dries Up
The Río Nigua at Camp Santiago flowed for 4 months and this 40 cm long fish moved into the flowing section. The river no longer flows and only pools remain. This location is about 17º59'50"N, 66º17'15"W and the elevation is 15 m.
The Río Nigua at Camp Santiago flowed for 4 months and this 40 cm long fish moved into the flowing section. The river no longer flows and only pools remain. This location is about 17º59'50"N, 66º17'15"W and the elevation is 15 m.
Black-tailed Prairie Dogs (Cynomys ludovicianus)
Black-tailed prairie dogs in an field bordered by a road (on right out of view) in Englewood, Colorado, on the southern border of Denver. 10:39 am.
Black-tailed prairie dogs in an field bordered by a road (on right out of view) in Englewood, Colorado, on the southern border of Denver. 10:39 am.
Scanning Electron Microscope (SEM)
SEM (Scanning electron Microscope) image of a vesicular ash particle erupted by Augustine volcano on January 13, 2006. The ash sample was collected during the ashfall in Homer, Alaska by John Paskievitch, AVO.
SEM (Scanning electron Microscope) image of a vesicular ash particle erupted by Augustine volcano on January 13, 2006. The ash sample was collected during the ashfall in Homer, Alaska by John Paskievitch, AVO.
Augustine Volcano
Augustine volcano viewed from the west.
Augustine volcano viewed from the west.
Diatoms (25 Species)
A photomicrograph featuring a set of 25 separate diatom species.
A photomicrograph featuring a set of 25 separate diatom species.
Crab Shell and Seaweeds
A crab shell is left on top of seaweed and other marine detritus washed up by waves on a beach.
A crab shell is left on top of seaweed and other marine detritus washed up by waves on a beach.
Radiolarians (3 Species)
Photomicrograph featuring three radiolarian species.
Photomicrograph featuring three radiolarian species.
Diatoms (25 Species)
A photomicrograph featuring a set of 25 separate diatom species as photographed under original lighting conditions.
A photomicrograph featuring a set of 25 separate diatom species as photographed under original lighting conditions.
Diatoms (Multiple Species)
A photomicrograph featuring a set of diatom species arranged in an artistic star-like pattern.
A photomicrograph featuring a set of diatom species arranged in an artistic star-like pattern.
Little Stoney Creek
Little Stoney Creek within snow-covered forestland.
Little Stoney Creek within snow-covered forestland.
Dry Falls
Dry Falls amid deciduous autumn foliage.
Dry Falls amid deciduous autumn foliage.
Paragliding by the Coast
Scenic view of paragliding by coastline at Torrey Pines State Reserve.
Scenic view of paragliding by coastline at Torrey Pines State Reserve.
Paragliding by the Coast
Scenic view of paragliding by coastline at Torrey Pines State Reserve.
Scenic view of paragliding by coastline at Torrey Pines State Reserve.
Paragliding by the Coast
Scenic view of paragliding by coastline at Torrey Pines State Reserve.
Scenic view of paragliding by coastline at Torrey Pines State Reserve.
Different Species of Shorebirds Feeding
Aggregation of different species of shorebirds feeding in the salt marsh.
Aggregation of different species of shorebirds feeding in the salt marsh.
Mountain Road with Autumn Foliage
A mountain road surrounded by colorful, deciduous autumn foliage in the Appalachian Mountains.
A mountain road surrounded by colorful, deciduous autumn foliage in the Appalachian Mountains.