The progression of the amygdala over time from its initial formation until its mature state. The amygdala is an almond-shaped set of neurons in the medial temporal lobe of the brain that play a key role in processing emotions such as fear and pleasure. [ GOC:cls GOC:jid GOC:dph https://www.worldcat.org/search?q=bn%3A0878937420 http://purl.obolibrary.org/obo/go/references/0000021 GOC:dgh ]