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'Pavement Ants' Have Healthy Appetite for Garbage

Ants can help clean up city streets, according to a new study. And that’s good news, because billions of dollars are spent each year to pick up litter that is carelessly thrown away and ends up on our urban landscape. Half of that litter is discarded food. Until now, scientists didn’t know how much garbage a tiny ant could eat. Insect ecologist Elsa Youngsteadt led the study to find out. She and a team of researchers from North Carolina State University conducted a controlled...

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