All Acronyms. UA [Internet]; Jul 31, 2016 [cited 2016 Jul 31]. Available from: http://www.allacronyms.com/_Military/UA. 'UA', All Acronyms, 31 July 2016, <http://www.allacronyms.com/_Military/UA> [accessed 31 July 2016] All Acronyms, UA (Jul. 31, 2016, 2:07 AM), available at http://www.allacronyms.com/_Military/UA.
1 Human (Homo Sapiens): Humans begin to show self-recognition in the mirror test when they are about 18 months old, or in what psychoanalysts call the  mirror stage .
Babies do 'fake' cry to get attention according to new research by Japanese psychologists. Babies as young as seven months use fake crying to get attention according to new research. Japanese researchers observed the crying patterns of two girls - aged seven and nine months - over a six month period.