How do fish have sex?

Just a few species prefer internal fertilization—that is, fish-on-fish action. And this is where the technique gets interesting. Male sharks and rays have special organs called “claspers” that help them do the deed. While that may seem wild, nothing is stranger than fish of the genus Phallostethus. read more

For some species of fish, reproduction is beyond casual. Females release eggs into the water, males release sperm, and the eggs get fertilized. No physical contact involved. read more

A guide through fish sex, reproduction and evolution By Jason Schratwieser Virtually every multicellular animal possesses the same innate drive: Live long enough to reproduce, preferably as many times as possible over the course of a life span. read more

Some fish make nests like clownfish and the female will lay her eggs and the male will will swim over them releasing his sperm. Some sharks do exhibit internal copuation the male will bite the females fins to hold onto her and sperm is passed to the female by one of their adapted fins called claspers. read more