Mating leopard slugs dangle from branches by a shared rope of their own slime with their penises hanging below. As hermaphrodites, these slugs inseminate each other during sex so, once the action starts, two penises are on display. And their penises are easily spotted: They’re electric blue and roughly the size of the slugs themselves.

Sometimes, penises pose logistical challenges. That is certainly the case for the leopard slug, which is so well-endowed that it has to go to extreme measures to reproduce. But then again, lots of them have little spikes and bumps, and all sorts of weird things coming off the ends of their penises that might help them anchor onto the female better, or help get sperm in more efficiently. So whatever you want to imagine dinosaur penises looked like, let your imagination go.One of our biggest challenges in understanding how dinosaurs lived, ate, and reproduced is the limited information that we have about them. We only have fossils — and fossils don’t preserve soft tissue (with a few very rare exceptions). But it’s a scientific question and I want answers — let’s do some research and try to figure out how dinosaurs had sex! Sadly, Dongs Don’t Age Well Mating can be competitive, with a single flatworm fertilizing another. In other cases, like with the tiger flatworm, they can play both roles: each flatworm gives and receives sperm from its partner. Whale Hello There! Right, but different species had different characteristics. So we can make some educated guesses, right? Size and shape? Who knows. But you're asking if it's penis-in-cloaca sex? That's probably how it would work in dinosaurs.

Sarah Werning: That's a big mystery. The problem is that there aren't any fossilized dinosaur wangs. Or, we haven't found any yet. That's partly because most penises in the animal kingdom don't have a bony component. It's usually more of a liquid inflation system, so it starts out limp, and blood gets pumped into it. We have no reason to think dinosaurs would be an animal that had any bones down there. Willingham explains that this violent process has caused bedbugs to evolve “something very vagina-like where they tend to get stabbed.” This special less-armored area of their abdomen might minimize harm as the male injects his sperm into the female’s circulatory system. Gender-Bending GenitalsDolphins are known for their intelligence, promiscuity and absurdly dexterous penises. They have a prehensile penis, meaning it can swivel, grab and grope, much like a human hand. A prehensile penis helps males navigate the complex, labyrinth-like reproductive tracts of female dolphins. Their two-headed penises resemble tiny swords, and battles can last for up to an hour as they take turns attempting to stab the other. The winner pierces the flesh of the other flatworm to deposit their sperm, something scientists refer to as “traumatic insemination.” Sato, T., Cheng, Y., Wu, X., Zelenitsky, D.K., Hsaiao, Y (2005). A Pair of Shelled Eggs Inside A Female Dinosaur Science, 308 (5720), 375-375 DOI: 10.1126/science.1110578

By shutting down half of their penis at a time, male echidnas fit perfectly with the female’s two-branched reproductive tract. This creature’s coat of quills don’t spare its genitalia, which features penile spines—a horrifying frequent trait in the animal kingdom (even humans once had them) which may increase fertilization success or trigger ovulation. Getting HandsyWe are connecting 3D print files makers with people who want to use their 3D printer. Our 3D model repository acts as a real source of inspiration since the best designers share their best STL files daily to offer you their latest inventions! Blue whales are the largest creature to ever roam the earth, and they certainly have the phallus to match. Blue whale penises range between eight and ten feet, with a foot-long diameter. Each of its testes along can weigh up to 150 pounds and can ejaculate gallons of sperm in a single go. There is much we don’t know about dinosaur sex. From possible positions to anatomy, mysteries abound. But the subject has moved beyond silly speculation. A better understanding of dinosaur evolutionary relationships has given paleontologists a framework from which to hypothesize about different aspects of dinosaur reproduction, and those ideas have been tested by discoveries in the fossil record. Future finds and analyses will undoubtedly flesh out some of the remaining unknowns. We are only just beginning to discover some of the most intimate secrets of dinosaur lives. On Cults you can also find a 3D printer nearby, get voucher codes to buy cheap 3D printers or filaments at best prices and also a whole series of 3D printing contests. Cults is a joyful community that brings together all 3D printing fans to dialogue and create together.

There's not a binary that is categorically one thing or the other when it comes to genitalia,” says Willingham. Carpenter, K. 1999. Eggs, Nests, and Baby Dinosaurs. Bloomington: Indiana University Press. pp. 78-81 We will probably never know the full range of dinosaurian penis variation. I doubt that such diverse and disparate creatures would have had a one-size-fits-all anatomy, although I also doubt the horrifying idea— which comes up often in internet comment threads—that male dinosaurs might have had long, prehensile organs which allowed them to inseminate at a distance. No matter what their gonads looked like, though, male dinosaurs probably had to get very close to their female partners during sex. There were only a limited number of positions which would have worked for dinosaurs.Dolphins don’t just use their penises for baby-making, either. Bottlenose dolphins frequently copulate for pleasure, and often with members of the same sex. Dolphin sex doesn’t last long, only about ten seconds, but males can ejaculate multiple times an hour. Fencing With a Phallus Of course, no one expects these glowing statues to be completely anatomically correct. However, while wandering through the Land of the Lost section, an interesting question was raised about the dinosaurs. The blue whale might have the world’s biggest penis, but size is relative. Barnacles have the biggest penis-to-body size ratio, with genitalia nearly eight-times their total body length. Recently, in an effort to not spend literally all of our time social distancing inside our house, my wife and I took a trip to the Oakland Zoo for some evening entertainment — a Glowfari. Bed bugs are famous for their aggressive, stabbing sex. Sometimes, overzealous males kill females with their saber-like penis in the process.