Comment by Animats
2 hours ago
The brains of corvids are not closely related to mammalian brains. All the mammals have roughly the same brain, but corvids have a different architecture.[1]
Intelligence seems to have evolved three times on this planet - mammals, corvids, and octopuses. Octopuses have a distributed system rather than one central brain. They all have neurons, but the higher level architecture differs drastically.
Knowing that several different architectures can work is important for AI. There's apparently more than one way to do it.
[1] https://www.sciencedirect.com/science/article/abs/pii/S23521...
Where do parrots fall in this grouping? They're not corvids. There must have been a pre-corvid ancestor.