Moray eel - Wikipedia
Moray eels, or Muraenidae are a family of eels whose members are found worldwide. The largest in terms of total mass is the giant moray (Gymnothorax javanicus), which carnivorous predators and feed primarily on smaller fish, octopuses, squid, . Check date values in: |date= (help); ^ Collar DC, Reece JS, Alfaro ME. Here we describe interspecific and communicative hunting between the grouper, Plectropomus pessuliferus, and the giant moray eel. Fish have the ability to communicate with each other while hunting their of hidden prey to cooperative hunting partners including moray eels.
Many species of fish will attack the same prey, but very few truly work together during a hunt by coordinating their attacks.
Until now, the most sophisticated example was an African elephantfish that flushes out its prey in tight formationsand communicates with one another using electric pulses.
But the goatfish are more sophisticated still. This is the second time that Bshary has observed Red Sea fish hunting in teams. Inhe described an equally remarkable alliance between two formidable predators: Again, this discovery was the result of his work with the cleaner wrasse.
A fishy alliance: Cooperative hunting in grouper fish & moray eels | Mo Costandi
Bshary saw that the groupers would visit the morays in their resting places and vigorously shake their heads.
The signal is a call to arms, rousing the lazing morays to leave their crevices and swim off with the groupers.
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The groupers lead the eels to a place where prey are hidden, and signal the right spot with more head-shaking; the morays investigate. The two species have complementary hunting skills.
The groupers are open-water specialists, but the morays can probe in cracks and crevices.
Master of the coral reef – The Giant Moray Eel
When both species hunt together, nowhere is safe. When the moray dives in, the fish has two options: Only one of the two predators will grab any individual prey, but both have a greater chance of eating if they work together.
Certainly, the groupers are five times more successful at catching prey if their partners are around. The blockers may be more likely to catch the fish if they circle around — a selfish strategy that looks a lot like cooperation.
Morays can move very fast and are extremely flexible. They are not fussy eaters and will be happy with a breakfast consisting of crustaceans, lunch with molluscs and cephalopods and some fish for dinner. Morays are night hunters, but won't say no to a quick snack if it passes by during the day.
They make a perfect team with Roving Coral Groupers when they squeeze into crevices and scare their prey which often swims into the mouth of a patiently waiting grouper.
Master of the coral reef – The Giant Moray Eel • Mares - Scuba Diving Blog
The eels actively recruit the groupers by shaking their heads from side to side encouraging them to join them in the hunt. Even though they are not the friendliest looking fish, they do not attack unprovoked and avoid confrontation by hiding out of the way; but when provoked or tempted with food, they can do some considerable damage. Many over eager and foolish divers who have tried to hand feed Giant Moray Eels have lost their fingers to their menacing bite.
When Morays strike, once latched on, they are unable to let go as they are the only fish with two sets of jaws. The first grabs the prey and holds it, while the second set of jaws positioned in their throat pulls the victim into their digestive system.
There is no escape once captured…does that sound horrible enough to deter you from feeding eels???Giant Moray Eel Dating .hurghada .Red Sea
Another interesting fact about the Giant Moray is that they literally die for sex… well, not exactly sex, but to reproduce. They sometimes need to travel over miles to find the perfect mate or place to breed.
They have both female and male organs, so there is no problem if the ideal mate is of the opposite sex.