Are sea snakes fish? What animals do they belong to?

Sea snakes are not fish, but reptiles, so they belong to reptiles. There is a big difference between reptiles and fish. The first is the respiratory system. Sea snakes breathe through their mouths and noses, so they need to float to the surface regularly for air. But fish breathe through gills. They breathe by filtering oxygen from the water. In addition, they move in different ways. Sea snakes move by crawling, while fish swim by fins. 1. Is the sea snake a fish? Sea snakes are not fish. They are reptiles. Although sea snakes live in water like fish, they are still very different. First of all, they breathe differently from their respiratory organs. Fish breathe with gills. They use gills to filter oxygen in water to achieve the purpose of breathing. Sea snakes breathe through their mouths and noses, so they can't stay in the water for a long time and need to swim to the surface regularly for air. Secondly, they move in different ways. Fish move through fins and tails, while sea snakes move through crawling. The two move in different ways.

2. What animal does the sea belong to? Sea snakes are reptiles, so they are called sea snakes because they live in water. There are many differences between them and snakes on land. They like to live in shallow water. Generally speaking, the depth of the water they live in will not exceed 100 meters. Different kinds of sea snakes like to live in different water quality. Some sea snakes like to live in clear water, while others like to live in turbid water.

Most snakes on land are non-toxic, but most sea snakes are poisonous, because they have front teeth and are quite toxic. Their venom is a great threat to humans and other animals, and if bitten, they may die.