>>16693026
Intelligent aliens would probably be boringly humanoid, maybe a little uncanny looking. Evolution for intelligence would pass through a phase of fire use and clothing use, so they would probably cook their food and wear clothing, meaning little body hair. Newborns being fed by milk is strictly superior to what birds do, so their women would probably have breasts. The more intelligent the aliens, the greater the requirements for brain growth in early life, and so the larger will be the female's breasts.