Cleaner wrasses check their body size in mirror before deciding whether to fight, study finds
A blue-striped cleaner wrasse (Labroides dimidiatus) swims in an aquarium on the right, with its mirror image on the left. ...
Tag: wrasses
A blue-striped cleaner wrasse (Labroides dimidiatus) swims in an aquarium on the right, with its mirror image on the left. ...