Sika deer of the buck; strong, prime bucks may hold up to . Territories are marked with a series of shallow pits or "scrapes", into which the males urinate and from which emanates a strong, musky odor. Fights between rival males are sometimes fierce and long, and may even be fatal. The gestation period lasts for 7 months. Hinds (does) give birth to a single fawn, weighing , which is nursed for up to 10 months. The fawn becomes independent 10 to 12 months after birth, and attains sexual maturity at 16 to 18 months in both sexes. The sika deer may
Animal roleplay 'hybrids'. These are humans who live part-time as one type of animal, and part-time as another. This is usually determined by the situation. There seems to be a growing trend among the BDSM scene in animal roleplay, especially pup and kitten play. Playing the role of a pup or kitten is one of giving over complete control over to another, while the 'master or handler' expects only unconditional love and obedience from his/her animal. Pony play is where at least one of the participants dresses to resemble and assumes the mannerisms and character of an equine animal. People involved in