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Scientists train goldfish to drive (yes, you read that right!)

6 de January de 2022
in Tech
Un poisson conduit un véhicule motorisé sur la terre ferme. © Ben-Gurion University

Does the ability to navigate in its environment depend on the species, or is it universal? This question has led a team of researchers to carry out an experiment, at first glance far-fetched, where they try to teach fish to drive a vehicle.

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For scientists, these images are surprising. Bumblebees were able to learn a complex technique: pulling a rope to grab otherwise inaccessible food (a sweet liquid). Until then, only birds and a few mammals were believed to have this ability. Better, this know-how was transmitted to other bumblebees, who observed their fellow scientists. Learning, by an individual and within a group, is therefore much more widespread in the animal world than one imagined.

It’s not every day that you see a fish drive a vehicle, and yet … Rest assured, the Pisces are not going to take our streets and we are not dealing with mad scientists. Even though the idea seems straight out of a bad film de science-fiction, the researchers of Ben-Gurion University of the Negev are quite serious.

Their research, published in the journal Behavioural Brain Research, attempts to answer a very precise question: do the mechanisms underlying the navigation of animals depend on thespecies and the environment, or are they universal? For this, they decided to take the idea to the extreme by seeing if the fish are able to navigate on dry land.

After a few days of training, the fish are able to direct the vehicle towards the target for their reward. © Ben-Gurion University

A device to test their ability to navigate on dry land

The vehicle is a simple aquarium placed on a motorized platform equipped with camera and you Lidar. When the fish swims to one side of the aquarium, the device will move in that direction. They were then free to explore their surroundings and received a reward for hitting a well-identified target. They tested six different fish, and after a few days the fish understood the system.

The fish are able to quickly reach the target, around obstacles and even avoid false targets. According to the researchers, this shows that the fish have successfully transferred their representation of space and their navigation skills to an environment very different from the one in which they evolved. At least some navigation mechanisms would therefore be universal, independently of the species.

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Tags: animal navigation abilitydrivegoldfishlidarnavigationpoissonreadroboticScientiststrain
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