In a school of rummy-nose tetras, a common aquarium fish, group coordination appears to occur by each fish continuously changing which of its neighbors it pays attention to, according to new ...

The rummy-nose tetra species appears to have chosen this co-ordination strategy where any individual may become a leader depending on the need.

A spontaneous change of swimming direction by a single fish triggers a collective u-turn in a group of rummy-nose tetras (Hemigrammus rhodostomus). Disclaimer: AAAS and EurekAlert! are not ...