Oophorectomy is the surgical removal of the ovaries of a female animal. In the case of non-human animals, this is also called spaying. It is a form of sterilization.

The removal of the ovaries together with the Fallopian tubes is called salpingo-oophorectomy. Oophorectomy and salpingo-oophorectomy are not common forms of birth control in humans; more usual is tubal ligation, in which the Fallopian tubes are blocked but the ovaries remain intact.

In humans, oophorectomy is most usually performed together with a hysterectomy - the removal of the uterus. Its use in a hysterectomy when there are no other health problems is somewhat controversial.

In animals, spaying involves an invasive removal of the ovaries, but rarely has major complications; the superstition that it causes weight gain is not based on fact. Spaying is especially important for certain animals that require the ovum to be released at a certain interval (called estrus or "heat"), such as cats and dogs. If the cell is not released during these animal's heat, it can cause severe medical problems that can be averted by spaying or partnering the animal with a male.

Oophorectomy is sometimes referred to as castration, but that term is most often used to mean the removal of a male animal's testicles.

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Amhara is the ethnicity of people in the central highlands of Ethiopia, numbering about 15 million, 27% of the country's population. They speak Amharic, which appertains to the South-Western Semitic languages group. Their predominant religion is Christianity of the Ethiopian Church.

The Amhara have been Ethiopia's ruling elite for centuries, represented by the line of emperors ending in Haile Selassie.

The Amhara are known for their beauty, as exemplified by the supermodel Liya Kebede.

Amhara is also one of the nine ethnic divisions (kililoch) of Ethiopia, containing the homeland of the Amhara people. Its capital is Bahir Dar . Covering 156,960 km2 in the northwest of the country, its population (as of 1999) is 15,850,000.

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