File:Flock of sheep.jpg
" If the sheep normally used faces to distinguish between categories of individuals we argued that they would not have to learn to do this task and would always chose the face that was most attractive to them. This is exactly what happened. The sheep chose sheep faces over human ones and familiar sheep faces over unfamiliar ones. We mainly used female sheep for these studies and they showed a clear ability for distinguishing gender. When they were not sexually interested in males they chose female faces every time, but switched to choosing male faces for a couple of days during each cycle when sex was on the agenda. They even showed some preliminary evidence for individual recognition by actually having preferences for the face of one male over another (the media referred to this as a kind of sheep dating agency!). Interestingly, more mature males seemed to get the vote over younger ones! (Kendrick et al., 1995). So being an old ram or goat may have its compensations. In any event, face cues are clearly being used for attraction as well as recognition in sheep and we confirmed this again in studies we carried out establishing that mothers particularly influence the female facial characteristics that their male offspring found attractive when they grow up (Kendrick et al. 1998) (Ma Ma’s Boys as one paper put it!)."
Amongst all these stars - if there are ETIs there, surely they must have countless different ideas of beauty. Great works of art, inspired by beautiful (in their eyes) ETI equivalents of our blobfish, opabinia, sheep, or whatever.
'Beauty is truth, truth beauty,—that is all
Ye know on earth, and all ye need to know.'
625. Ode on a Grecian Urn. John Keats. The Oxford Book of English Verse