On Earth, it is observed that on average, life has been getting smarter over time. In the Mesozoic, the smartest animals were comparable to chickens in intelligence, yet now in the Cenozoic that's well below the average and multiple different groups of animals have independently evolved high intelligence and even sapience. One species, humanity, developed sophonce, becoming so smart that it started to build cities.
And Sagan 4, here in its Alpha timeline, is
tens of millions of years ahead and has already had
three different species reach that same exceptional level of intelligence.
In theory, high intelligence should be all over the place within Sagan 4's biosphere. I myself took note of the odd lack of explicitly smart creatures, which led to submissions such as the
Seashrog and the
Loafpick, which are each smart in their own ways. However, as I have familiarized myself more and more with the life that already exists in this timeline I have become increasingly convinced that there are also many lineages that already have high intelligence without it being stated directly.
One in particular that comes to mind is tasertongues. Out of all the lineages to produce a sophont, they are the only one that proceeded to also survive the extinction event that followed (roamers and triwalkers both got nuked with their sophont members). More specifically, modern tasertongues came from the same direct ancestor as the Sagon only a few million years prior; when comparing them to human evolution, this means that they are as close to the Sagon as non-human apes are to humanity, if not closer. Assuming evolution is occurring at Earth-like speeds, the ancestors of all living tasertongues therefore must have at the very least been self-aware, and they were probably capable of simple tool use. And this is far from unreflected in living species--though self-awareness is never specified, the
Boomcracker in particular has tool use in the form of clubs.
What other lineages are there that must have unstated high intelligence, or have potential to gain it?