Chamaeleon (the chameleon) is a minor southern constellation that was included in Johann Bayer's Uranometria[?], but may have been in use somewhat earlier.
... is spread out with 18.5% under the age of 18, 4.4% from 18 to 24, 20.6% from 25 to 44, 26.3% from 45 to 64, and 30.2% who are 65 years of age or older. The median age is ...