Biologist images - Page 2 of 7

A scientist swabs a Mount Lyell salamander (Hydromantes platycephalus) to test for chytrid fungus in the Sixty Lake Basin of King's Canyon National Park, Nevada.

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A scientist swabs a Mount Lyell salamander (Hydromantes platycephalus) to test for chytrid fungus in the Sixty Lake Basin of King’s Canyon National Park, Nevada.

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A scientist swabs a Mount Lyell salamander (Hydromantes platycephalus) to test for chytrid fungus in the Sixty Lake Basin of King’s Canyon National Park, Nevada.

A scientist holds a Mount Lyell salamander (Hydromantes platycephalus) in the Sixty Lake Basin of King's Canyon National Park, Nevada.

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A scientist holds a Mount Lyell salamander (Hydromantes platycephalus) in the Sixty Lake Basin of King’s Canyon National Park, Nevada.

A biologist scales rocks in King's Canyon National Park's Sixty Lake Basin, Nevada.

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A biologist scales rocks in King’s Canyon National Park’s Sixty Lake Basin, Nevada.

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Three scientists examine the previous evening’s collection of amphibians in their hotel room in Limon, Ecuador.

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Tadpoles are preserved in formulin for future study in Limon, Ecuador.

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Two scientists examine a ravine demolished by a road-widening/gravel mining project in Ecuador. The spot was once prime amphibian habitat.

A male harlequin frog (Atelopus sp.) is swabbed for chytrid fungus at a research site near Limon, Ecuador.

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A male harlequin frog (Atelopus sp.) is swabbed for chytrid fungus at a research site near Limon, Ecuador.

After being examined for chytrid fungus, a male harlequin frog (Atelopus sp.) is shown to members of the press at a research site near Limon, Ecuador.

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After being examined for chytrid fungus, a male harlequin frog (Atelopus sp.) is shown to members of the press at a research site near Limon, Ecuador.

A researcher holds a male harlequin frog (Atelopus sp.) collected for captive breeding near Limon, Ecuador.

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A researcher holds a male harlequin frog (Atelopus sp.) collected for captive breeding near Limon, Ecuador.

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A researcher surveys a ravine that was clogged by a road-widening/gravel mining project near Limon, Ecuador. The area was once prime amphibian habitat.

A harlequin frog (Atelopus sp.) is swabbed for study at a research site near Limon, Ecuador.

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A harlequin frog (Atelopus sp.) is swabbed for study at a research site near Limon, Ecuador.

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A woman takes a picture in the cloud forest reserve of Reserva Las Gralarias, near Mindo, Ecuador.

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A woman takes a picture in the cloud forest reserve of Reserva Las Gralarias, near Mindo, Ecuador.

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Vegetation in the cloud forest reserve near Mindo, Ecuador.

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Two men search for amphibians in a cloud forest reserve near Mindo, Ecuador.

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A giant earthworm at Reserva Las Gralarias near Mindo, Ecuador.

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A giant earthworm at Reserva Las Gralarias near Mindo, Ecuador.

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A biologist searches for amphibians in a cloud forest reserve near Mindo, Ecuador.

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Searching for frogs along the cloud forest reserve near Mindo, Ecuador.

An endangered (IUCN) relict leopard frog (Lithobates onca).

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An endangered (IUCN) relict leopard frog (Lithobates onca).

Part of a smoky madtom's (Noturus baileyi) fin is clipped so that its DNA can be tested to determine genetic diversity in the wild.

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Part of a smoky madtom’s (Noturus baileyi) fin is clipped so that its DNA can be tested to determine genetic diversity in the wild.

A biologist wears a wet suit and snorkel to look for the critically endangered (IUCN) and federally endangered smoky madtom (Noturus baileyi) in Abrams Creek.

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A biologist wears a wet suit and snorkel to look for the critically endangered (IUCN) and federally endangered smoky madtom (Noturus baileyi) in Abrams Creek.

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A woman feeds fish at Conservation Fisheries, a rare fish propagation center in Knoxville, Tennessee.

A mobile logperch (Percina kathae) in the Conasauga River, Tennessee.

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A mobile logperch (Percina kathae) in the Conasauga River, Tennessee.

A mussel biologist holds a stripe-necked musk turtle (Sternotherus minor peltifer) in the Conasauga River, Tennessee.

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A mussel biologist holds a stripe-necked musk turtle (Sternotherus minor peltifer) in the Conasauga River, Tennessee.

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Holding and releasing a thin-billed prion (Pachyptila belcheri), a type of petrel, a seabird, near Ushaia on the Argentinian mainland.

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A USFWS employee, stands over a calf that was killed by a wolf pack near Red Deer, MT. Wolves very seldom kill cattle. Defenders of Wildlife actually reimburses ranchers for any cattle loss to wolves in Montana.

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A care taker holds up a specimen of Gastrotheca pseutes at a captive breeding at Pontificia Universidad Catòlica in Quito, Ecuador. (IUCN: EN)

A rare male Atelopus frog is swabbed for chytrid fungus by a scientist near Limon, Ecuador.

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A rare male Atelopus frog is swabbed for chytrid fungus by a scientist near Limon, Ecuador.

Tim Krynak holds up a specimen of a Ecuador cochran frog, Nymphargus griffithsi (IUCN: Vulnerable), a type of glass frog. Tim and his wife Kathy have been coming to this place near Mindo, Ecuador for several years to monitor amphibian life. The Krynaks and their team hope that chytrid fungus does not show up here, but know that many other parts of Ecuador have already seen catastrophic declines due to the fungus. "Every time we come back, if it's quiet on that first night, we think, 'oh no'. We're scared. We think, this is it," said Tim.

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Tim Krynak holds up a specimen of a Ecuador cochran frog, Nymphargus griffithsi (IUCN: Vulnerable), a type of glass frog. Tim and his wife Kathy have been coming to this place near Mindo, Ecuador for several years to monitor amphibian life. The Krynaks and their team hope that chytrid fungus does not show up here, but know that many other parts of Ecuador have already seen catastrophic declines due to the fungus. “Every time we come back, if it’s quiet on that first night, we think, ‘oh no’. We’re scared. We think, this is it,” said Tim.

A health exam for whooping crane chicks, (Grus americana), at the International Crane Center. Shown are biologists and veterinarians wearing gray 'sandhill crane' costumes as they examine chicks, take measurements, and give shots. They all wear gray to mimic the colors of a 'bad guy' bird, the sandhill crane. White is worn only when they want to imitate whooper parents in positive situations only.

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A health exam for whooping crane chicks, (Grus americana), at the International Crane Center. Shown are biologists and veterinarians wearing gray ‘sandhill crane’ costumes as they examine chicks, take measurements, and give shots. They all wear gray to mimic the colors of a ‘bad guy’ bird, the sandhill crane. White is worn only when they want to imitate whooper parents in positive situations only.