Ants can find their nest walking backwards

photo source: Telegiz

Ants are able to find their nest again walking backwards, as shown by a new study. If the insects carry large amounts of food, they usually walk backwards and they monitor the position of the sun to orient themselves. During the walk backwards the ants to stop sometimes just turn around and ensure that they are on the right track. That report Scottish researchers in the scientific journal Current Biology.

The scientists observed how desert ants in Seville bits of food transported to their nest. If the bugs came across a large crumbs that they could not carry, they dragged these pieces of food backwards to their nest. While the ants oriented themselves to the sun, so the investigation showed. If the researchers showed sunlight were reflected in a mirror behind the animals, the insects were namely the wrong direction. Eventually, the ants found out they walked in the wrong direction. 

Sometimes the insects lost their food namely fall from their feet. Then they looked around to see if they were already near their nest. If they were on the wrong track, they adapted their route. According to lead researcher Barbara Webb is the performance of the ants outstanding. "They only have a tiny brain, smaller than a pinhead, and yet they navigate very effective under different conditions, even when walk backwards," she declares news site Phys.org.

Webb thinks that robots can learn a lot from the insects. "This finding could inspire us to build robotic systems navigating the same way."

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