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View Resource A Galapagos sea lion (Zalophus wollebaeki) nurses a pup.

In mammals, lactation has important effects on maternal and offspring fitness. Pinnipeds (fin-footed mammals) are a good mammalian group for research studies that focus on lactation because in...

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View Resource A grey tree frog (Hyla versicolor).

A grey tree frog (Hyla versicolor). Amphibian species are declining globally, and pesticides may play a role, but their concentrations are often low in nature. Carbaryl is a common pesticide that can...

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View Resource A group of bluehead wrasse (Thalassoma bifasciatum) shoal above a reef at St. Croix, U.S. Virgin Islands.

A group of bluehead wrasse (Thalassoma bifasciatum) shoal (group together) above a reef at St. Croix, U.S. Virgin Islands. Shoaling is a common anti-predator behavior for reef fishes such as the...

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View Resource A herd of alpine ibex (Capra ibex) struggling to move through deep snow.

A herd of alpine ibex (Capra ibex) struggles through deep snow. A recent study examined 45 years of census data for a population of alpine ibex in Gran Paradiso National Park in northwestern Italy....

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View Resource A juvenile male Antarctic fur seal (Arctocephalus gazella) on South Georgia Island

The Antarctic fur seal (Arctocephalus gazella) feeds mostly on krill (Euphausia superba). A recent found that fur seals adjust their foraging activity to track the highly variable distribution and...

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View Resource A juvenile Marbled Murrelet (Brachyramphus marmoratus) sits on its nest platform high in an old-growth Douglas fir.

A juvenile Marbled Murrelet (Brachyramphus marmoratus) sits on its nest platform high in an old-growth Douglas fir. The Marbled Murrelet is an endangered seabird. A recent study used age-ratio...

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View Resource A leaf shows damage caused by necrosis (cell death) and chlorosis (insufficient chlorophyll production) due to a pathogenic fungus.

A leaf shows damage caused by necrosis (cell death) and chlorosis (insufficient chlorophyll production) due to a pathogenic fungus. Such damage reduces the photosynthetic area available to the plant....

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View Resource A male Klug's clearwing butterfly (Dircenna klugii klugii) foraging on a coffee flower (Coffea arabica) in Finca Irlanda, Soconusco region, Chiapas

A male Klug’s clearwing butterfly (Dircenna klugii klugii) foraging on a coffee flower (Coffea arabica) in the Soconusco region of Chiapas, Mexico. Shade-grown coffee certification programs...

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View Resource A misty rainforest canopy in central Amazonia.

The central Amazon Basin is home to some of the most biologically diverse forests in the world. These rain forests are being reduced and fragmented at a fast rate (as of 2004, about 24 million...

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View Resource A mosaic of fields and forests in the Willamette Basin, Oregon, USA.

Different land uses have created a varied landscape in the Willamette Basin of Oregon that supports a rich array of species as well as an array of economic activities. Researchers have recently...

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