Fish are curious about new numbers (VIDEO) Frontiers This video is under embargo. Please login to access this video. Caption The video shows experiments described in the lab of Prof Vallortigara and reported in Messina et al (2022). On the left side an example is shown of the procedure of habituation of a zebrafish to a certain numerosity; on the right side one can notice that during the dishabituation test when the numerosity is abruptly changed the zebrafish exhibit increased stay close to the stimulus to explore the novelty. Controls showed that zebrafish responded to numerosity as such and not just to change in area or spatial positions of the dots. Credit Giorgio Vallortigara / University of Trento Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.