Template:Motd/2013-07-30 (en)

A complex bout emitted by a male of Periophthalmodon septemradiatus. Left panel: video recording; the fish, which is a resident territorial owner, is oriented towards the cage containing the intruder (on the right, not visible). The oscillogram (top right panel) and spectrogram (bottom right panel) of the emitted bout show a train of pulses followed by a tonal segment.

 Template:Motd/2013-07-30

This is the English translation of the Media of the day description page from 30 July 2013.

Descriptions in other languages:

• Motd/2013-07-30 (en)
• Motd/2013-07-30 (zh-hans)