Template:Motd/2012-10-23 (en)

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Vocalizations of a mudskipper during territorial display. Left panel: video recording; the fish, which is a resident territorial owner, is oriented towards a cage containing an intruder (on the right, not visible). The oscillogram (top right panel) and spectrogram (bottom right panel) of the emitted sound show a train of pulses followed by a tonal segment.

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