Talking about non-human persons is standard philosophical terminology, e.g Personhood. What is it to be a person? What is necessary, and what suffices, for som

Talking about non-human persons is standard philosophical terminology, e.g Personhood. What is it to be a person? What is necessary, and what suffices, for something to count as a person, as opposed to a non-person? What have people got that non-people haven't got? This amounts more or less to asking for the definition of the word person. An answer would take the form “Necessarily, x is a person if and only if … x …”, with the blanks appropriately filled in. More specifically, we can ask at what point in one's development from a fertilized egg there comes to be a person, or what it would take for a chimpanzee or a Martian or an electronic computer to be a person, if they could ever be. (See e.g. Chisholm 1976: 136f., Baker 2000: ch. 3.) (from http://plato.stanford.edu/entries/identity-personal/ http://plato.stanford.edu/entries/identity-personal/)