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6 March 2014 1:04 pm ,
Vol. 343 ,
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
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ScienceShot: How Glowworms Maximize Their Glow
2 July 2013 4:00 pm
The silk webs of glowworms (Arachnocampa tasmaniensis) look like diamond chandeliers, their glowing threads dangling from dark cave ceilings to attract and snare flying insects. A new study reveals that unlike rainforest glowworms, these cave-dwelling larvae of fungus gnats synchronize their glowing patterns so the colony shines brightest during the day. After collecting two species of Arachnocampa larva from Australia, one from a cave in southern Tasmania and one from a rainforest in Queensland, scientists recreated their environments in the lab and allowed the creatures to build their webs. Then they filmed the bioluminescence patterns of each species throughout the day. The cave-dwelling glowworms observe their neighbors and synchronize their cycles of luminescence to match one another , while the rainforest species do not, the team reports this month in Integrative and Comparative Biology. And though the rainforest species shine brightest at night, the cave dwellers peak during the day—a strategy the researchers think may help the species ensnare the most prey.
See more ScienceShots.