(FOX News) -- Touch-screen technology has ventured into the world of reptiles. Red-footed tortoises have learned how to use the devise in exchange for a strawberry, a new study reports.
Researchers taught the tortoises a few touch-screen basics in order to learn about the animals' navigational techniques. The tortoises not only mastered the task in exchange for strawberries, but the animals also transferred their knowledge to a real-life setting.
"Generally people see reptiles as inert, stupid and unresponsive," said Anna Wilkinson, one of the study's lead researchers and a senior lecturer of animal cognition at the
Red-footed tortoises are inquisitive and eager to eat treats, making them good test subjects, Wilkinson said. The tortoises, which are native to Central and
Wilkinson's colleagues at the
The four red-footed tortoises in the study learned how to use touch screens fairly quickly, Wilkinson said.
"It's comparable to the speed with which the pigeons and rats do it," Wilkinson told Live Science. "I've trained dogs to use a touch screen and I'd say the tortoises are faster."
Their speedy learning is in line with the fact that tortoise hatchlings don't receive parental care, so they have to learn how to make decisions about food and shelter for themselves from the moment they hatch, she added.
In the main experiment, the tortoises pecked a red triangle in the center of the touch screen. When two blue circles flashed, they had to consistently peck either the circle on the right or the one on the left to get a treat.
All four of the tortoises mastered the touch-screen task, but two eventually stopped cooperating, possibly because they were too small to properly reach the screen, Wilkinson said.
The remaining two tortoises applied their knowledge to a real-life situation in the next part of the experiment, Wilkinson said. The researchers placed them in an arena with two blue empty food bowls that looked like the blue circles on the touch screen. The tortoises went to the bowl on the same side as the circles they were trained to peck on the screen.
However, it's possible that the tortoises weren't transferring knowledge, but simply had a preferred side, said Jennifer Vonk, an associate professor of psychology at
The researchers trained the tortoises to go to the opposite bowl in the arena to see how flexible they were, but once reintroduced to the touch screens three months later, the tortoises immediately began pecking on the same side as before.
This behavior shouldn't come as a surprise, said Vonk, who has trained orangutans, gorillas, chimpanzees and black bears to use touch screens.
"Side biases on touch screens are pretty strong," Vonk told Live Science. "As an animal gets used to responding to a stimulus on one side, it can be pretty hard to break."
The new findings will help researchers compare the perceptual and cognitive abilities of tortoises to other animals that can perform the same tasks, Vonk said. The experiment also reinforces other findings that tortoises are intelligent creatures.
"If you are taking on a reptile, you do need to consider their cognitive enrichment," Wilkinson said.
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