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Scientists remotely control live turtles

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April 24, 2013

Researchers have been able to non-invasively control the walking paths of red-eared slider...

Researchers have been able to non-invasively control the walking paths of red-eared sliders (Photo: Shutterstock)

Last year, much to the delight of squeamish people everywhere, scientists were successfully able to remotely control the paths traveled by live cockroaches. They did so by wirelessly stimulating the insects’ antennae and cerci sensory organs. Now, a group of scientists from the Korea Advanced Institute of Science and Technology (KAIST) have reported success in controlling the paths of walking turtles. Fortunately for the reptiles, the KAIST researchers’ methods were considerably less invasive than those used on the cockroaches.

Like most animals, turtles have an innate obstacle-avoidance behavior – if something blocks their path in one direction, they instinctively change their trajectory in order to avoid it. The scientists drew upon this factor in four untrained red-eared sliders (the turtles commonly sold in pet shops).

When it was time for its 10-minute testing session, each turtle had a wirelessly-controlled servo motor attached to the top of its shell. Attached to that motor was a sort of curved blinder – picture an opaque version of one of those cylindrical cake covers, cut in half. It can be seen in use in the video below.

The turtle would start by walking forward on the lab floor, with the blinder positioned over its rear end. If the scientists caused the blinder to pivot around on the turtle’s shell, so it blocked the animal’s vision from one side, the turtle would automatically turn in the opposite direction to avoid the perceived barrier. By tracking each turtle via an overhead camera and selectively swiveling the blinder to one side or the other, the researchers could get the animals to follow predetermined paths along the floor.

While causing turtles wearing half-cake-covers to walk in a certain direction might not have any direct practical applications, the project is intended to explore ways in which untrained animals can be controlled through non-invasive means, for possible use in surveillance, reconnaissance, exploration or even rescue missions. Ultimately, the plan is to develop miniaturized behavior-controlling devices that could be used in the real world on a variety of other animals.

Source: PLOS ONE (paper) via Discover

About the Author
Ben Coxworth An experienced freelance writer, videographer and television producer, Ben's interest in all forms of innovation is particularly fanatical when it comes to human-powered transportation, film-making gear, environmentally-friendly technologies and anything that's designed to go underwater. He lives in Edmonton, Alberta, where he spends a lot of time going over the handlebars of his mountain bike, hanging out in off-leash parks, and wishing the Pacific Ocean wasn't so far away.   All articles by Ben Coxworth
5 Comments

It's like watching the government control the people! Nope, can't do that! Can't go that direction! Nope! Gotta go this way instead! Until we meet their end goal.

Joe Apperson
25th April, 2013 @ 08:21 am PDT

For God's sake, what arrogance possesses human beings that leads them to believe they have the right to "manipulate" other living beings?

Whether for entertainment, amusement, cruelty, or allegedly "in the name of science"... "mankind" (the penultimate oxymoron) has no justification nor inherent right to experiment upon - nor exploit - other species, regardless of how "noble" we deem these intents...

If you wish to test the dangers of products or the efficacy of drugs upon our own species, then USE that species exclusively for such exploitation: After all, how could you possible hope for more valid, applicable results than that?

Stephen Lee Phillips
25th April, 2013 @ 09:29 am PDT

Stephen get over it. Seriously, you have no idea what nature is truly like. Get out and see the wild, animals aren't fluffy little innocents.

nickyhansard
26th April, 2013 @ 06:36 am PDT

OK, this ticks me off. Yes, of course you can control them by torturing them with this mysterious object that keeps swinging into their field of view. Now stop it!

Arf
26th April, 2013 @ 07:44 am PDT

Nickyhansard: Watch your logical fallacies please.

http://en.wikipedia.org/wiki/Two_wrongs_make_a_right#Two_wrongs_make_a_right

booradley
29th April, 2013 @ 10:15 am PDT
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