Urban Ants Love Junk Food Almost As Much As Humans

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Dropped a chip or cookie on the pavement? Don't bother picking it up especially if you live in an urban area like Manhattan. That's because according to a team of researchers led by North Carolina State University's Clint Penick, some industrious ants will soon carry it away. For believe it or not, many city ants have come to love junk food almost as much as humans do!

The team began by collecting 100 specimens of 21 ant species that dwell across Manhattan - from sidewalks to medians, as well as parks. They then measured the levels of carbon 13 in the bodies of each species. That's because foods containing corn and sugar cane, which is pretty much all processed food as well as meat, contain a considerable amount of this isotope.

They discovered that the Tetramorium ant species that live in the nooks and crannies of city pavements across the world had the highest level of C13. Those that dwell in parks and lawns had considerably lower levels of the isotope. While these findings were not surprising, the low levels of C13 in the L.emarginatus ant species, certainly was, given that they live close to humans. The researchers believe this could be because the ants are recent migrants and have yet to acquire a taste for junk food.

Penick believes that adapting to human food is probably the reason the ants are able to thrive in an area where their natural diet of dead insects is scarce. The researchers now plan to test if the tiny insects show a preference for human junk food even when their normal diet is readily available - so stay tuned!

Resources: Guardian.com, gizmondo.com

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Reading Comprehension (3 questions)

  1. Why does the author believe we should not pick up any junk food that falls on the pavement?
  2. How did Clint Penick come to the conclusion that some ants love junk food?

Critical Thinking Challenge

If the researchers were to examine your C13 levels which ant species...

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  • bigmelo
    bigmeloFriday, April 10, 2015 at 3:14 pm
    Wow - this article makes me imagine a family of couch potato ants munching on crumbs & scraps of N.Y.C. junk food while watching old movies that haven't been colorized. Is it just me? :D
    • on
      onTuesday, April 14, 2015 at 8:09 pm
      its just you
      • suppplz
        suppplzSaturday, April 11, 2015 at 10:37 am
        • superpony
          superponyFriday, April 10, 2015 at 9:10 pm
          Ha! I guess the ants will need to be on a diet soon!
          • awelxer191
            awelxer191Friday, April 10, 2015 at 4:30 pm
            Nope...except watching documentaries ABOUT ANTS
            • suppplz
              suppplzSaturday, April 11, 2015 at 10:39 am
              Luv that! Don't forget- It has to be in black and white and they all share one big kernel of popcorn.
          • bcookie0124Friday, April 10, 2015 at 2:49 pm
            • CavinFriday, April 10, 2015 at 2:39 pm
              Wow that is awesome.
              • coolgirl16Friday, April 10, 2015 at 2:37 pm
                First comment!!!!! Woo-hoo!!!!
                • beastmode101
                  beastmode101Monday, April 20, 2015 at 6:27 pm
                  nice try...
                • cool kidFriday, April 10, 2015 at 2:36 pm
                  These ants are totally amazing

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