YouTube credit goes to Phillip Henley and his daughter Nicole at Emu Logic NSW AU. They produce many worthwhile educational videos.

Emu Farming Education

"Emu In The Sky" - Australian Aboriginal Astronomy

By en:User:Rayd8 - en-wp, CC BY 2.5,

(See educational video below from Emu Logic, NSW, AU)

Premier reference book in two inter-related volumes by Maria Minnaar Bailey

Small print inside egg reads: Chick grows as

yolk and albumen are taken in.

We monitor incubator temperature and humidity 24/7 using effective Sensorpush technology.