Uluru the Uluṟu-Kata Tjuṯa National Park. The local Anangu, the Pitjantjatjara people, call the landmark "Uluṟu" (). This word is a proper noun, with no further particular meaning in the Pitjantjatjara dialect, although it is used as a local family name by the senior Traditional Owners of Uluru. On 19 July 1873, the surveyor William Gosse sighted the landmark and named it Ayers Rock in honour of the then Chief Secretary of South Australia, Sir Henry Ayers. Since then, both names have been used. In 1993, a dual naming policy was adopted that allowed official names that consist of both the
Genetic sexual attraction the hypothesis to occur as a consequence of genetic relatives meeting as adults, typically as a consequence of adoption. However this is a very rare consequence of adoptive reunions. Incest is extremely rare between people raised together in early childhood due to a reverse sexual imprinting known as the Westermarck effect, which desensitizes them to later close sexual attraction. It is hypothesized that this effect evolved to prevent inbreeding. Although reported frequently as anecdote in the field of psychology, there are no studies showing that people are sexually attracted to those genetically similar to them. Studies of MHC genes show