I don't really care what consenting adults do, but involving innocent children and even critters is beyond understanding. At least there might be some well deserved payback:
“Wild Animals don’t practice safe sex, of course they have STIs!” explains Dr Barbara Natterson-Horowitz, a modern day Dr Dolittle and UCLA cardiologist consulting for the Los Angeles zoo. Atlantic bottlenose dolphins can get genital warts, baboons suffer from herpes and syphilis is common in rabbits. (3)
STIs in animals and humans have a historical relationship. “Animals suffer from almost all of the diseases that human beings do but veterinarians and physicians never talk about this. Physicians have not traditionally seen veterinarians as their clinical peers and that is unfortunate”. (3) Indeed, studying STIs in both humans and animal could save lives for both. “Two or three of the major STIs [in humans may even] have come from animals” says Alonso Aguire, a vet and president for conservation medicine at wildlife trust” (4).
“We know, for example, that gonorrhoea came from cattle to humans. Syphilis also came to humans from cattle or sheep many centuries ago, possibly sexually”. The most recent and deadliest STI to have crossed the barrier separating humans and animals has been HIV, which humans got from the simian version of the virus in chimpanzees.
The most common STI among animals today is Brucellosis or undulant fever present in domestic livestock, dogs, cats, deer and rats. It is also transferable to humans by drinking contaminated milk or direct contact with the infected animals and can be very dangerous to humans, one reason why milk is pasteurised.
Overall, Humans STIs have enough in common with animal STIs that much can be learnt about human STIs by studying them in animal models. (4)
http://www.animalresearch.info...nsmitted-infections/