Why do hagfish produce slime?

Hagfish produce slime as a defense mechanism against predators. When threatened, they secrete a mucous substance that rapidly expands in water, creating a thick, gelatinous mass that can suffocate or disorient attackers. This slime can also help hagfish escape by clogging the gills of predatory fish. Additionally, the slime aids in the hagfish's feeding process, allowing it to more effectively consume decaying organic matter on the ocean floor.