What is the function of spinyrays in a fish?

Spinyrays, also known as spines, are stiff, pointed structures found in the fins of some fish species. Their primary function is to provide protection against predators, making it more difficult for them to swallow the fish. Additionally, spinyrays can assist in stabilizing the fish during swimming and help in maneuvering within their aquatic environment. Some species also use them in mating displays or territorial defense.