AI rates the beauty of tropical fish - ScienceBlog.com

"We recorded a beauty score for each species and correlated it with each fish's ecological characteristics – its size, whether it's carnivorous or herbivorous, nocturnal or diurnal, in the middle or at the bottom of the water column, etc.," Mouquet explains. The researchers then noted that the fish that are considered beautiful – those with sharp contrasts of luminosity (black/white) and colour (e.g. In addition, they represent only a small branch of the tree of life. The fish considered "less attractive" are by far the majority, with longer bodies, duller colours and less easily discernable patterns (for example, the bluish-grey fish found in the water column). The oldest of these species have been in existence for 100 million years and span a wider variety of ecological traits.