June 18, 2013
Green Flash on the Moon On Cerro Paranal, the 2600-metre-high mountain in Chile’s Atacama Desert that is home to ESO’s Very Large Telescope, the atmospheric conditions are so exceptional that fleeting...
View ArticleDeath and Sex
Spontaneous male death in the dark fishing spider, Dolomedes tenebrosus. Photograph by Steven K. Schwartz.
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A Dolomedes tenebrosus male in the field (Lincoln, Nebraska). Photograph by Steven K. Schwartz.
View ArticleGiant Females
Female-biased sexual size dimorphism in the dark fishing spider, Dolomedes tenebrosus. Image by Karina I. Helm.
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A Dolomedes tenebrosus female in the field (Lincoln, Nebraska). Photograph by Steven K. Schwartz.
View ArticleFirst Find
The first Dolomedes tenebrosus spider (female) that Steven Schwartz found on May 26th, 2006 in Pioneers Park (Lincoln, Nebraska). Photograph by Steven K. Schwartz.
View ArticleMating Pods
Mating arenas in the laboratory (University of Nebraska-Lincoln). Photograph by Steven K. Schwartz.
View ArticleMale
A Dolomedes tenebrosus male in the field (Lincoln, Nebraska). Photograph by Steven K. Schwartz.
View ArticleMale
A Dolomedes tenebrosus male in the laboratory (University of Nebraska-Lincoln). Photograph by Steven K. Schwartz.
View ArticleVideo
Spontaneous male death in the dark fishing spider, Dolomedes tenebrosus, followed by removal of the male from the mating arena. Video by Steven K. Schwartz
View ArticleJune 19, 2013
Spirograph Nebula Glowing like a multi-faceted jewel, the planetary nebula IC 418 lies about 2, 000 light-years from Earth in the constellation Lepus. In this picture, the Hubble telescope reveals some...
View ArticleJune 20, 2013
Galaxy Crash The NASA/ESA Hubble Space Telescope has produced this vivid image of a pair of interacting galaxies known as Arp 142. When two galaxies stray too close to each other they begin to...
View ArticleAnthidiellum notatum
Anthidiellum notatum Even bees that do sting often cause no trouble to us. "Their stings are very innocuous," said Droege. "The venom in a sweat bee is designed to repel another bee, or another kind of...
View ArticleAgapostemon splendens
Agapostemon splendens Bumblebees aside, are other native bees declining? We just don't know, said Droege. Bumblebees are well-known, and their decline has been so extreme that "a baby could have...
View ArticleBombus griseococolis
Bombus griseococolis The precipitous decline of honeybees -- some 30 percent of all commercial colonies died last year -- has elicited despair from farmers and concern from the public. Rather less...
View ArticleCemolobus ipomoeae
Cemolobus ipomoeae Asked why there are so many different shapes and sizes of bees, Droege replied, "Why are there so many sizes and shapes of flowers? If there was just one honeybee in the world, the...
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Halictus ligatus
Halictus ligatus "Sweat bees are the most common," said Droege of bees that, in addition to feeding on nectar and pollen, are attracted to the salt in mammalian sweat. "They will come and lick the...
View ArticleLasioglossum havanense
Lasioglossum havanense As well as they sense smells, bees rely just as much on their eyes, which can spot from a distance such subtleties as a fringe of color on a petal, signaling the availability of...
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