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12 December 2013 1:00 pm ,
Vol. 342 ,
Stefan Behnisch has won awards for designing science labs and other buildings that are smart, sustainable, and...
The iconic 125-year-old Lick Observatory on Mount Hamilton near San Jose, California, is facing the threat of closure...
Recent results from the Curiosity Mars rover have helped scientists formulate a plan for the next phase of its mission...
A new, remarkably powerful drug that cripples the hepatitis C virus (HCV) came to market last week, but it sells for $...
In pretoothbrush populations, gumlines would often be marred by a thick, visible crust of calcium phosphate, food...
Evolutionary biologists have long studied how the Mexican tetra, a drab fish that lives in rivers and creeks but has...
Victorian astronomers spent countless hours laboriously charting the positions of stars in the sky. Such sky mapping,...
In an ambitious project to study 1000 years of sickness and health, researchers are excavating the graveyard of the now...
- 12 December 2013 1:00 pm , Vol. 342 , #6164
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ScienceShot: Country Ants Go to Town
1 April 2010 3:12 pm
In North American forests, odorous house ants (Tapinoma sessile ) lead quiet lives. The insects—called "odorous" because they smell like a piña colada when crushed—make their homes in hollow acorns and form simple colonies of 50 to 100 workers beneath the sway of a single queen. But as soon as they move on up to cities and suburbs, these mild-mannered ants live large, exploding into complex supercolonies of more than 5 million workers and thousands of queens. The insects also begin to act like an invasive species, robbing other ant species of resources and raiding buildings for food, researchers will report in an upcoming issue of Biological Invasions. Future studies will focus on the odorous ant's genetics, in hopes of learning why urban life turns it into such a swarming bully—and how to stop it.