This post is NSFW ildlife. This is the absolute worst penis. The bean weevil is a beetle that uses traumatic insemination and its wang is basically made of nightmares.
University biologists have used innovative 3D scanning and engineering-inspired computer simulations to help solve the mystery of why some species of male mammals evolved bones in their penises. It has never been fully understood why male animals such as tigers, bears, wolves, elephant seals and ferrets developed a rigid mineralised stick-like bone through the middle of their penis glans - known as a baculum - instead of a ligament of the kind humans have. The bones have evolved different shapes and sizes, from the ice-cream scoop form of the honey badger to the long thin osseous bone of a black bear.
By Tim Collins For Mailonline. Biologists used innovative 3D scanning and engineering-inspired computer simulations to solve the case. It has never been understood why tigers, bears, wolves and others developed a baculum - a mineral stick-like bone through the middle of their penis glans.
Males in many modern amniote taxa have a hydraulic penis that inflates for copulation. Hydraulic skeletons are typically reinforced with inextensible fibres; the specific arrangement of the fibres within the skeleton determines whether it is flexible or resists bending. I show that the hydraulic skeleton in the turtle penis is reinforced by an axial orthogonal array of collagen fibres. This microanatomy is evolutionarily convergent with that of mammalian penises, and implies that there is a limited number of mechanical designs for an inflatable structure with high bending stiffness.
From Wikimedia Commons, the free media repository. Reasonator Scholia Statistics. Subcategories This category has the following 12 subcategories, out of 12 total.
Penisthe copulatory organ of the male of higher vertebrates that in mammals usually also provides the channel by which urine leaves the body. The corresponding structure in lower invertebrates is often called the cirrus. The human penis is anatomically divided into two continuous areas—the body, or external portion, and the root.
In the animal kingdompenises can be weird and wild things. Males of just about every animal species use some form of the organ to shoot sperm into females' eggs and create more little critters. But that's where the similarities end.
It can be as long as a finger in a monkey. In the walrus, it can be two feet long. But the human male has lost it completely.
To figure out that number, researchers looked at more than species across the mammal family tree for the presence of the bone. So even with our new understanding of its history, the purpose of the penis bone remains unknown. All rights Reserved.