Anal Fin
Anal fin is found on the ventral side of a fish, between its pelvic fins and tail. The number of rays and spines on the anal fin can often be used to identify fish species by biologists. It is used for stabilization when swimming.
Anal fin is found on the ventral side of a fish, between its pelvic fins and tail. The number of rays and spines on the anal fin can often be used to identify fish species by biologists. It is used for stabilization when swimming.