Jellyfish are often referred to as genderless creatures. However, there is a lot of evidence that jellyfish have a binary gender. The way jellyfish reproduce is different from other species. They do not have sex organs and they use their tentacles to release sperm and eggs into the water. This means that jellyfish can only be male or female if you classify them by their tentacles. Jellyfish are one of the few animals that have no sexual organs and rely on releasing sperm and eggs into the water for reproduction.