Abu Uthman Amr ibn Bahr al-Kinani al-Basri, commonly known as al-Jahiz, was an Arabic polymath and author of works of literature, theology, zoology, philosophy, grammar, dialectics, rhetoric, philology, linguistics, and politico-religious polemics. His extensive zoological work has been credited with describing principles related to natural selection, ethology, and the functions of an ecosystem.

Arabic is a Central Semitic language of the Afroasiatic language family spoken primarily in the Arab world. The ISO assigns language codes to 32 varieties of Arabic, including its standard form of Literary Arabic, known as Modern Standard Arabic, which is derived from Classical Arabic. This distinction exists primarily among Western linguists; Arabic speakers themselves generally do not distinguish between Modern Standard Arabic and Classical Arabic, but rather refer to both as al-ʿarabiyyatu l-fuṣḥā or simply al-fuṣḥā (اَلْفُصْحَىٰ).