Fire Ants Offer Biomimicry Inspiration  

Posted by Big Gav in

TreeHugger has an interesting post about fire ants - Fire Ants Link To Form Unsinkable Raft, Offer Biomimicry Inspiration.

Fire ants are incredible survivalists, and that includes when they face floods. Researchers have been studying the behavior of fire ants to learn more about how they manage to live through a flood in their nest. Turns out, they link up to form an unbreakable - and unsinkable - chain, floating over the water in such a way that even the ants on the bottom of the pile survive. Check out how it works, and why it matters.

If you get skeeved out by watching a bunch of tiny bugs crawl all over each other, you might skip the video. But if you can deal with it, it's well worth it. This is pretty darn cool stuff.

The research was done by mechanical engineer Nathan Mlot of the Georgia Institute of Technology, who did the study not as an interested biologist or entomologist, but rather as an engineer interested in duplicating the physics behind the ants' remarkable trait.

This behavior could help scientists create biomimicry solutions for "small, swarming robots that might someday be used to explore inaccessible areas or even clean up oil spills," reports Wired. Indeed, ants have already been studied for solutions from mimicking their swarming behavior within computers to protect machines form viruses, or studying how leaf-cutter ants work with bacteria and fungi to learn how to make better biofuels.

What is extra fascinating is the various ways in which clumps of ants behave. In the water, they form such chains to be able to float with the majority, if not all, members surviving the ordeal. However, they also behave like, "honey or ketchup, and can be described using equations usually found in fluid dynamics."

"You could pick up a cluster of these ants and mold it in your hand. You could form it into a ball and toss it up in the air, and all the ants would stay together in one ball," Mlot said. "They're almost like a material."

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