This jellyfish kills up to 100 people every year and now its sperm is scary.
Tell me, this is a box jellyfish!
The box jellyfish is one of the most terrifying jellyfish in the ocean. They also have many other nicknames, "sea hornets" or "fire jelly" - names that are enough to say that this jellyfish is not simple. The reason is that the tentacles of this jellyfish have thousands of poisonous fuses, enough to knock down 60 adults within minutes. And indeed, every year, it is estimated that more than 100 people die from jellyfish worldwide.
Naming the scariest jellyfish, but few would expect that their . sperms also carry a very horrifying name."Harpoon-armed sperm" is called "harpoon-armed sperm".
The sperm of the jellyfish box has an extremely unusual name: The sperm of the sperm launcher.
For those who don't know, "harpoon" is the name of a giant tuber used to hunt whales. It has a pointed tip, but the prongs that are protruding so that when plugged into meat are not easily drawn. And according to new research published in Morphology magazine, box jelly sperm are also designed with a similar tip and prongs.
In box jellyfish, males and females do not touch each other when they teach. Instead, the male jellyfish releases large amounts of sperm into the sea. The sperm will swim up, cling to the sex organ of the jellyfish, and it is almost impossible to draw it out with such a terrifying structure to ensure that fertilization takes place successfully.
This mating method is determined by at least 2 box jellyfish species, Copula sivickisi and Tripedalia cystophora. In the latest study of the University of Copenhagen (Denmark), experts collected a number of samples of T. cystophora in Puerto Rico to conduct research.
Jellyfish have a method of mating . violent.
They found that these jellyfish contain sperm in "cnidocyte" packages - a type of explosive that is used to release jellyfish venom to enemies. But in these two jellyfish, cnidocytes also contain sperm, and they effectively explode every time they need to mate.
Hypotheses show that mating of box jellyfish is considered very special. For most jellyfish and corals, they mate by releasing sperm into the water, hoping that the opposite sex will "pick up" and fertilize. But jellyfish boxes, they put sperm in the cavity for digesting food.
If they see their children passing by, they will give their "girlfriend" a sperm bomb through tentacles. Once in contact with the female, the sperm will "break" , plug directly into the female's genitalia and then enter to fertilize.
This hypothesis is also supported with a lot of evidence, especially when experts discover the "explosive" material full of sperm in the body of a female jellyfish.
"When the gamete and gonad test of T. cystophora jellyfish, we found that the male sperm has a lot of cnidocytes, allowing them to attach very tightly to the female".
"What a shameful mating method".