In a study published in the February edition of the peer-reviewed Behavioral Brain Research journal, researchers at Ben-Gurion University, located in the southern Negev Desert, created a device that allows a large fish red swimming in an aquarium, itself placed on a robotic rolling platform, to move.
The researchers had attached cameras tracking the movement of the fish and linked to a computer guiding the vehicle. When the goldfish went to the front part of the aquarium, the vehicle moved forward and when the fish remained in the rear part, the vehicle remained stationary, say the researchers who posted a video of this singular “vehicle ordered by a fish “.
To refine their research, Israeli scientists placed a target outside the vehicle. When the goldfish managed to reach the target, it received 0.002 grams of food granule in its aquarium as a reward, says the study funded by public funds and which followed local protocol in terms of respect for animals.
After a few days, the fish managed to reach the target without going astray, “no matter where it started from” and “avoiding dead ends”, points out the study concluding that goldfish have the “ability to transfer his spatial representation and his navigation capacities in a terrestrial environment completely different “from his own.