Close-up of small fish "nightmare" in the sea of Mexico

Sarcastic fringeheads are native to the waters of Southern California and Baja, Mexico. They are classified as potentially hazardous to humans.
A special feature of this wide-mouthed fish is that they are very aggressive and are known for their wide mouth that scares prey.
Their main food is crustaceans and are ready to attack anything that comes close. Even those are divers and do not give up when attacking their prey.
When the males get too close together, they open their amazingly large and colorful mouths and pose threats to each other.
If one of the males does not back down, this will escalate into a fierce battle. Ask two wide-mouthed fish ready to "lose" enough with each other to take the position of the strongest.
According to the research of biologist Watcharapong Hongjamrassilp, this aggressive fish also uses its mouth to communicate with each other.
This is a rather special form of communication discovered by Watcharapong Hongjamrassilp.
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