[jojojaf]

I didn't read the article but, small numbers are more immediately useful. Larger numbers are needed for describing more complex phenomena, and their construction relies on smaller numbers. So I find the explanation to the title of this article to be intuitively obvious; I don't see how it could be possible for a brain to evolve to perceive large numbers better than smaller ones

[Swenrekcah]

Perhaps a fish or an insect might benefit more from knowing an accurate approximation of their or another school/swarm, than it would from knowing if there are 2 or 4 of them somewhere (since there seldom are so few).

[passion__desire]

Brain systems do handle order of magnitude changes. E.g. going from dimly lit room [1-3] to bright sunlight. [1000-2000]