The reasons why sunfish are called sunfish are as follows:

1. It is related to their habits. Although they are deep-sea fish, they are more often seen on the sea surface basking in the sun. Because basking in the sun can help raise their body temperature and help them kill parasites on their bodies.

2. They spend a long time basking in the sun, and their bodies are turned sideways on the water, like an overturned car. So, people named them sunfish based on this characteristic.

Introduction to the sunfish:

The sunfish is also called "head fish", "sunfish", "sunfish", etc., and is one of the common fish. From the category point of view, sunfish belongs to the genus Sunfish of the family Sunfish, order Sunfish, order Sunfish, and is a type of fish. From the specific classification point of view, it belongs to bony fish. The appearance characteristics of sunfish are very prominent. Their bodies are relatively tall and flat, and their overall shape is close to oval.

Their eyes are small, the mouth is also small, and the snout is relatively rounded and blunt; their body surface and fins look rough, their pectoral fins are very short and small, and they have no caudal and pelvic fins. From the perspective of growth environment, sunfish is a type of fish that lives in the ocean and is a marine fish.

And they have certain requirements for the surrounding water temperature and like to live in warm places, so they are widely distributed in the tropics and subtropics. Although they are also found in temperate and cold zones, their numbers are relatively small.

In terms of food habits, sunfish are omnivores. They can eat animals, and there are many types of food. Jellyfish, molluscs, crustaceans, and small fish may all become their food. In addition, they can also eat plants, such as seaweed.