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 .
When Do Babies Walk? A baby's first steps are among the most memorable of all the milestones. One minute she's holding herself up against the couch or table, the next minute she's cautiously putting one foot in front of the other destined to fall. Learn when your baby should start to walk, how to encourage walking, and more. Facebook.