What type of fertilization is typical for most fish? Describe the features of fish breeding.

If we divide all fish according to the method of fertilization into external and internal, then the number of species with the first type will prevail. So, for example, among cartilaginous fish, internal fertilization and the development of offspring in the form of eggs or embryos in the body of the fish are more common, and among bone and bony fish – external fertilization and laying eggs. The amount of caviar formed in this case depends on the degree of care of the parent individuals for the offspring, the more eggs, the less attention the fish pays to it. The manifestation of care is the protection of offspring.