Celebrating the History of Science
and the Science behind History
Imagine you’re driving home from your favorite take-out restaurant when you suddenly encounter a giant boulder in the middle of the road. With luck, the person at the wheel has time to slam on the brakes and then drive around it.
Scientists are refining a technology that helps cars avoid collisions and traffic jams. Cars will be programmed to “see” a roadblock or sudden slowdown before the driver does. And some of this technology is based on . . . ants.
Leafcutter ants, to be specific. Leafcutters can be any of a number of species of ants equipped with powerful mandibles (jaws). They travel in long lines through the rainforest, leaving a scent along the trail to find their way back. After an ant saws a chunk out of a leaf, it flings it over its back and then joins the super-highway of nest-mates heading back to the nest. Once there, the ant’s colleagues chew the vegetation into a pulp and then mix it with ant poop and fungus spores. The ants eat the resulting fungus that grows from the decomposed goop.
According to a study in the Journal of Experimental Biology, scientists blocked the path and created a narrow passageway between leafcutter ants and their nest, to see what the ants would do. Not only did the ants at the front show the ants behind them an efficient route back to the nest, but the chain of ants also somehow communicated, ant by ant, the need to carry a smaller piece of leaf to fit through the narrower passage the scientists had created.
And none of them bumped into anything, even while lugging leaves ten times their body weight. By working together and adapting quickly, the ants communicated information and reinforced the trail using what scientists call “distributed intelligence.”
And ants don’t just help car engineers. Scientists in other fields have been studying ant traffic patterns for all sorts of different systems where massive amounts of interacting units have to move around without crashing into one another. Besides traffic jams, scientists are studying ways to apply ant-like ingenuity to fields of study such as molecular biology and telecommunications.
Sara Albee's book, Why'd They Wear That?, was published by National Geographic in 2015. Get ready to chuckle your way through centuries of fashion dos and don'ts! In this humorous and approachable narrative, you will learn about outrageous, politically-perilous, funky, disgusting, regrettable, and life-threatening creations people actually wore in public.
MLA 8 Citation
Albee, Sarah. "Ants in a Jam." Nonfiction Minute, iNK Think Tank, 4 Dec. 2017, www.nonfictionminute.org/ Ants-in-a-Jam.
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