This is part of the Supplementary information of the paper of the week. Its a paper about male aggression in Drosophila. High speed movies of flies fighting. Then if you remove Octopamine (a dopamine like neurotransmitter) the flies are less aggressive. Also, like with school kids, bigger flies tend to pick on smaller flies.
Octopamine in Male Aggression of Drosophila.
S. Hoyer, A. Eckart, A. Herrel, T. Zars, S. Fischer, S. Hardie, M. Heisenberg
Reproduced from Current Biology.
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