Term Name:	development of animal secondary sexual characteristics
Synonyms:	development of secondary sexual characteristics, development of secondary sexual characteristics, sensu Metazoa
Definition:	The process whose specific outcome is the progression of the secondary sexual characteristics over time, from their formation to the mature structures. In mammals, examples include growth of axillary, chest, and pubic hair, voice changes, testicular/penile enlargement, breast development and menstrual periods. Development occurs in response to sex hormone secretion.
Ontology:	GO: Biological Process [GO:0045136]    QuickGO    AmiGO