Eels and Grouper Hunt Together

The reputation of fish as some of the world's dumbest animals is frequently disparaged. For example, when they forget things and lose track of their ideas, people will compare themselves to goldfish. However, the sea can take you by surprise, and there is a lot happening below the waves.

Eels and grouper will hunt together to their mutual advantage, which suggests that these aren't just random interactions, according to research. Eels often hunt reefs at night while grouper typically hunt open seas during the day. As a result, grouper prey can avoid it by hiding under reefs, and eels' prey can avoid it by staying in open water. So you can see how a collaboration could be advantageous to all parties.

The grouper must aggressively approach a moray eel in order for this to succeed, shaking its head until the eel pays attention. The eel then hunts with the grouper in and around the reef; occasionally, a grouper will even point out a concealed fish to the eel. According to observation, both fish have better hunting results when they hunt together than they do when they hunt alone.