When nature gets weird
It's quite interesting to find that angler fishes have such a unique process of reproduction, apparently this process is called sexual parasitism where the male angler fish becomes a parasite by attaching itself with the female. Eventually, the male losses most of his internal organs including his eyes and also connects his bloodstream with his partner and helps in the fertilization process by producing sperms whenever the female is ready to reproduce. Surprisingly the female's imune system doesn't respond during the fusion process because the male angler fish lack certain genes to trigger an imune response from the body of the female.
It's quite interesting to find that angler fishes have such a unique process of reproduction, apparently this process is called sexual parasitism where the male angler fish becomes a parasite by attaching itself with the female. Eventually, the male losses most of his internal organs including his eyes and also connects his bloodstream with his partner and helps in the fertilization process by producing sperms whenever the female is ready to reproduce. Surprisingly the female's imune system doesn't respond during the fusion process because the male angler fish lack certain genes to trigger an imune response from the body of the female.