比較的最近まで、アラビア半島に今は絶滅した大型のサギの一種が生息していた。その鳥にはベンヌと多くの共通点があった。新王国時代の古代エジプト人はこれをベンヌのモデルにしたかもしれない<ref>Reflections on prehistoric life at Umm An-Nar (Trucial Oman) based on faunal remains from the third millennium B.C. , Hoch , Ella , 1977 , South Asian Archaeology 1977 , M. Taddei ,pages:589–638 , Fourth International Conference of the Association of South Asian Archaeologists in Western Europe</ref>。
==Worship信仰 ==
[[File:Fenix bennu.jpg|thumb|Ancient Egyptian depiction on [[papyrus]] of the deity Bennu wearing the sun disk]]
Like Atum and Ra, the Bennu was probably worshipped in their cult center at [[Heliopolis (Ancient Egypt)|Heliopolis]].<ref name="Wilkinson"/> The deity also appears on funerary [[scarab (artifact)|scarab]] amulets as a symbol of rebirth.<ref name="Hart"/>