It has been said for a long time that the hip bones of elephants and dolphins are basically useless. However, researchers now discover the opposite reality: hip bones are important for mating in these species , even their shape and size affect the degree of autoclaving. sexual leads of the subject.
>>>Search for the whale "Forever Alone" on Earth
Both whales and dolphins have pelvic bones, which are evolutionary remnants from their ancestors left on land more than 40 million years ago. For a long time, most people still believe that these bones are merely traces of remnants, gradually shrinking like a coccyx in humans.
In whales, males with large hip bones also possess " more " testicles.(Artwork: Animal planet)
However, after four years of careful analysis and study of pelvic pelvic bones, expert Matthew Dean from Southern California University and Jim Dines - who is responsible for managing Los County's collection. Angeles of the Museum of American Natural History, discovered, the truth is not exactly that. They wrote, extremely flexible penile control muscles of a marine mammal, directly attached to the pelvis.
The team hypothesized that pelvic bones could influence the level of mammalian penis control, helping to provide an evolutionary advantage.
To test their judgment, the two researchers looked at hundreds of pelvic bones and used 3D scanners to create digital models, unprecedented details of the shapes and sizes of those bones. , then compare them together. They also later collected data on the size of the testes relative to the weight of the whale.
The results revealed, the larger the testes were, the greater their pelvis. This implies, pelvic size is related to the size of the whale testicle.
In the natural world, in species with females mating with many males, creating a highly competitive mating environment, males often develop larger testicles as a way to attract females. Therefore, male whales possessing more " pelvic " pelvis may be synonymous with larger testicles and greater sexual attraction before females.
