The Chromodoris Reticulata, one species of sea slug, has a spined penis that can only be used once in its lifetime. When it comes to defecation and urination, this animal uses a cloaca, a small opening on its body. One thing separating Echnida's penile functionality from other terrestrial mammalian males is that its penis is solely used to mate.
However, when it needs to be put to use, it will come out of its prenuptial sac.
When the echidna isn't getting its jollies, its penis stays flaccid inside the body. The spines trigger ovulation to increase the fertilization success rate. Plus, similar to the rest of the echidna, its penis has a spiky coat made of sharp penile spines. One look at the female two-branch reproductive system, and this two-headed penis entrance begins to make a lot more sense. Because cetaceans never find themselves in ambient temperatures, they've found unique ways to compensate.īlue whales have blood in their veins that they send directly to their testicles, warming up their sperm and helping it to remain viable for use. A regular scrotum will lower when it reaches the ambient temperature to help keep its sperm viable. It's also worth noting that blue whales and other cetaceans do not have scrotums like most terrestrial mammalian males. When having intercourse with female blue whales, they can ejaculate multiple gallons of sperm. Each blue whale testicle can weigh up to 150 pounds, about the same weight as the average adult male human. Together, we here report the first successful cultivation from bottlenose dolphins of a herpesvirus that probably causes benign genital plaques, is endemic in this group of dolphins, and is likely transmitted by sexual contact.The largest penis in the animal kingdom can easily weigh a couple hundred pounds, but the largest blue whale penis ever recorded weighed 800 - 900 pounds!įUN FACT: The largest penis of any adult land animal goes to the adult elephant, which can surprisingly grow up to six feet long on average.īecause they're the biggest whales in the world, it's no surprise that they've got giant testicles. Although herpesvirus infection has been associated with abortion, perinatal mortality, and urogenital neoplasia in other species, we found no evidence of herpesvirus infection by PCR in tissues from six cases of abortion and perinatal mortality, and no diagnoses of urogenital tumors in 24 bottlenose dolphins from this zoo collection that died since 1990. Seroconversion occurred around the age of onset of sexual behavior. The percentage of positive samples was higher in adults (20/21, 95%) than in juveniles (7/15, 47%). We used the newly cultivated bottlenose dolphin herpesvirus (TTHV) to develop a direct enzyme-linked immunosorbent assay for anti-TTHV antibodies in banked sera of these dolphins. Herpesvirus was successfully cultivated from penile plaque samples and identified as a member of the Gammaherpesvirinae by DNA sequencing and phylogenetic analysis. Biopsies from a penile plaque showed epithelial hyperplasia by histology, contained herpesvirus-like particles by electron microscopy, and tested positive for herpesvirus by PCR. Herpesvirus infection was significantly associated with the occurrence of mucosal plaques on penis (n=3) or vulva (n=4). Samples from the genital mucosa of male (n=21) and female (n=15) dolphins were tested by nested polymerase chain reaction (PCR) targeting the DNA polymerase of herpesvirus. We studied the pathology, epidemiology, and clinical significance of genital herpesvirus infection in a zoo collection of bottlenose dolphins (Tursiops truncatus).
0 kommentar(er)
