I highly doubt this is the result of a scan, fMRI doesn't have high enough resolution to detect neurons that prefer absence versus a particular number. It's als

I highly doubt this is the result of a scan, fMRI doesn't have high enough resolution to detect neurons that prefer absence versus a particular number. It's also rare to see fMRI used at all on animal models, maybe a little on monkeys but very uncommon on anything smaller. I would be absolutely shocked if they were trying to scan crows. That said, I don't find the interpretation of the results very convincing. I'm going only on the Quanta article, perhaps the original research tells a more compelling story. But with the details provided so far I don't see how the physiology can rule out the idea that crows have a concept of "none" but don't consider "none" as a potential number like "two".