In nature, the penis of male thistle turtle is more than body length, while the female vagina turtle beetle has spiral coiling, which makes it difficult to mate. Scientists studied the mating mechanism of the thistle beetle, and found that there were many unusual characteristics, which made the male penis beetle’s super long penis normally able to complete mating. The problem may be mistaken for a vulgar entomological joke:
How does a male beetle with a penis length more than a body length should drill the genitals into the spiral vagina of a female companion without deforming?
However, this answer can fundamentally improve the insertion of clinical medical catheters, making the whole program more secure and reliable.
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Post time: Jan-19-2018