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Orchiopexy is performed in the event of testicular torsion, a urologic emergency presenting with intense pain and often without inciting injury. [citation needed]While neonatal torsion occurs with no anatomic defect to account for its occurrence (occurring in utero or shortly after birth), adult torsion results from a bilateral congenital anomaly often called a "bell-clapper deformity", where ...
Cryptorchidism is seen in all domestic animals, most commonly in stallions, boars, and canines. [17] The prevalence of this condition can vary depending on species and breed. Evidence of this condition is more likely in companion animals and swine than ruminants. [18]
The post-pubertal pediatric population and adults are at higher risk of malignant tumors and usually have a histology of a mixed germ cell tumor. Their first line of treatment is radical orchiectomy; however, they may be candidates for testis-sparing surgery such as partial orchiectomy, if there is a presence of a benign tumor.
The naming of hybrid animals depends on the sex and species of the parents. The father giving the first half of his species' name and the mother the second half of hers. (I.e. a pizzly bear has a polar bear father and grizzly bear mother whereas a grolar bear's parents would be reversed.)
Some documented species, specifically salamanders and geckos, that rely on obligate parthenogenesis as their major method of reproduction. As such, there are over 80 species of unisex reptiles (mostly lizards but including a single snake species), amphibians and fishes in nature for which males are no longer a part of the reproductive process. [43]
Mice are the most commonly used mammal species for live animal research. Such research is sometimes described as vivisection. Vivisection (from Latin vivus 'alive' and sectio 'cutting') is surgery conducted for experimental purposes on a living organism, typically animals with a central nervous system, to view living internal structure.
You might've thought zombies were the creation of science fiction writers, and while that may be true for human zombies, animals are a whole other story. 10 'zombie' animals that really exist Skip ...
For example, in current comparative research on different species of primates, it is shown that cooperative-breeder species like callitrichids due to their greater social tolerance, and sensitivity to others' signals, may perform better on tasks requiring social learning, communication, and alliance-making than their independently reproducing ...