Reply #26: Here. I quote Wikipedia.

[Bonobo]

Personally the subject has little interest to me.

http://en.wikipedia.org/wiki/Who_is_a_Jew%3F
"Who is a Jew?" (Hebrew: מיהו יהודי?‎ pronounced ) is a basic question about Jewish identity and considerations of Jewish self-identification. The question has gained particular prominence in connection with several high-profile legal cases in Israel since 1962.<1><2>
The definition of who is a Jew varies according to whether it is being considered by Jews based on normative religious statutes, self-identification or by non-Jews for their own particular purposes. Because Jewish identity can include characteristics of an ethnicity, a religion,<3> and citizenship, the definition of who is a Jew has varied, depending on whether a religious, sociological, or ethnic aspect was being considered, particularly since the early 19th century schism.<4>
According to halakha, the oldest normative definition used by Jews for self-identification, a person is matrilineally a Jew by birth, or becomes one through conversion to Judaism. However, adherence to this definition has been challenged since the emergence of the Karaite sect, emergence of modern groups in Judaism since the 19th century, and the creation of the state of Israel in 1948 reflecting:
Child's non-Jewish mother: i.e. whether a child born of a non-Jewish mother should be considered Jewish through the father's Jewish identity.
Conversion: i.e. what process of conversion other than the normative orthodox procedure should be considered valid.
Historical loss of Jewish identity: i.e. whether a person's or group's actions (such as conversion to a different religion) or circumstances in his, her or community's life (such as being unaware of Jewish parents) should affect his or her Jewish status.
Diaspora identity: identity of Jews among themselves, and by non-Jews throughout the Jewish diaspora.
Claim to Israeli citizenship: the examination of the three previous issues in the context of the Basic Laws of Israel.