If one were to take a census on intelligent life in the part of the Universe the Earth goes around in, the results would probably shock humans. As entities in higher densities, 5th and above, have mobility and often go where duty calls, they may be wholly absent or present in great numbers, depending. Due to the Transformation, the Earth is positively swarming with such attention at the present time. Therefore, to give a realistic picture, we will describe 2nd, 3rd, and 4th Density percentages only.
On a world by world basis there are about 1,000 dead worlds for every one that holds life. Humans are familiar enough with their surroundings to understand conditions on other planets, and if anything, would be surprised at the percentage capable of life. Not every life bearing planet sustains life that can develop to the level required for conscious and intelligent thought. There are about 2,500 primordial worlds for every one that can support an intelligent species. Your Earth, for instance, had many such species with this potential. Of these worlds that hold 3rd Density intelligent species, the vast majority, perhaps 75%, are water babies, as the vast majority of habitable planets are essentially water planets. These species may be crablike, fishlike, squidlike, or formed like almost any of your ocean inhabitants - an almost infinite variety.
Of the worlds that sustain land dwelling intelligent species, the greater share, just under 60%, are reptilian. Reptilian life forms appear first, and thus better their percentages. A minority are mammalian, above 10%, but whenever these life forms are a candidate they beat out all other candidates as mammalian existence is highly interactive and thus a good spiritual schoolyard for forming entities. The remaining land dwelling 3rd Density species range between birdlike or insect types, the latter more prevalent at about 30%. Since 3rd Density is a short stop, required only for the orientation lesson, 4th Density entities are much more prevalent. There are approximately 1,200 4th Density entities for every forming 3rd Density entity.