Israeli scientists have created aquarium on wheels with which they taught fish to control the compact vehicle. This is reported in the magazine Behavioral Brain Research.
Ben-Gurion University specialists were able to demonstrate that fish navigation does not depend on their location in a specific environment. Researchers noticed that the fish are equally successfully moved along the water and land, which can talk about the versatility of the method of orientation in space in different environments.
Scientists placed fish in aquarium located on a mobile base. The aquarium was equipped with cameras, lidar and computer processing. Lidar tracked the movement of animals inside the aquarium and duplicated the data on the vehicle wheels. To force the fish to move in a certain direction, scientists arranged bait for them.
It turned out that first animals were spent before half an hour to navigate in space and find the right path. However, after a few repeats, the same fish passed the way per minute.
“How space is represented in the brain of fish, and the strategy that it uses can be as successful in the earth’s environment as in water,” the authors of the study said.
In the middle of December, Australian scientists have created a robot fish that protects amphibians from attacks of small fish. Specialists artificially reduced the activity of aggressive fish, not causing them physical harm.