Adjective
of or relating to or characterized by neoteny
Source: WordNetneotenic development Source: Internet
A prime example are their neotenous skulls. citation The shape of their skull does not change into adulthood; it only increases in size. Source: Internet
The neotenous individuals have higher survivorship as well as higher fecundity than the salamanders that had gone to the adult form in the higher altitude and cooler environment. Source: Internet
In humans "The cartoon of Betty Boop illustrates some human features which are sometimes labeled as neotenous, such as a large head, short arms and legs relative to total height, and clumsy, child–like movements." Source: Internet
This implies that proportionately large heads and proportionately short legs would be neotenous features for adults. Source: Internet