flashlight fish
Image of the Day: Flashlight Fish
The bioluminescent Anomalops katoptron can coordinate its schooling behavior after dark. 
Image of the Day: Flashlight Fish
Image of the Day: Flashlight Fish

The bioluminescent Anomalops katoptron can coordinate its schooling behavior after dark. 

The bioluminescent Anomalops katoptron can coordinate its schooling behavior after dark. 

fish school
Satiated Fish Swim at the Back of the Pack
Ashley Yeager | Jul 1, 2018
Digesting a big meal takes energy, forcing some minnows to swim in spots at the rear of a school.
Infographic: Swimming After Eating
Ashley Yeager | Jun 30, 2018
How a meal affects minnows' positions in their schools
Fish Behavior Affected by Parasite
Kerry Grens | Aug 1, 2016
A common infection might be skewing experimental data on zebrafish.
Musical Scales
Kerry Grens | Sep 1, 2015
The quest to document an ancient sea creature reveals a cyclical chorus of fish songs.
Old-School Fish Guides
Rina Shaikh-Lesko | Mar 18, 2014
Experienced fish may be critical for keeping migrating populations on track, a study finds.