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Audience is Undergraduate upper division 15-16
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View Resource A female parasitoid wasp (Euplemus vuilletti) feeds from its host, a beetle larva (Callosobruchus maculatus).

A female parasitoid wasp (Euplemus vuilletti) feeds on its host, a beetle larva (Callosobruchus maculatus), by puncturing the beetle's cuticle with its ovipositor. The wasp creates a feeding tube to...

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View Resource A female rotifer (Brachionus calyciflorus) with two eggs

A female rotifer (Brachionus calyciflorus) with two eggs. The eggs are the result of parthenogenesis, or asexual reproduction by the female, which occurs in rotifers when growing conditions are...

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View Resource A female silver studded blue butterfly (Plebejus argus) on a shrub in the Donana National Park of southern Spain.

A female silver studded blue butterfly (Plebejus argus) on a shrub in the Donana National Park of southern Spain. P. argus has a mutualistic association with ants of the genus Lasius and uses the...

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View Resource A field planted with two kinds of cotton (Gossypium sp): Bt cotton and normal cotton, where the normal cotton acts as a refuge for insects.

Some rows of the field in the photograph contain cotton plants (Gossypium sp) that are genetically engineered to produce a toxin from the bacterium Bacillus thuringiensis (Bt). Bt kills insects that...

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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 Generally Accessible Derivation of the Golden Rule of Bioeconomics

This article provides formulas to understand the bioeconomics of world fishery harvesting.

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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