Domestication of Red Jungle Makes for Smaller Brain at Same Time

[centrarchid]

https://royalsocietypublishing.org/doi/10.1098/rsos.200628

 

[ronott1]

Did I read the study correctly? The brains were actually bigger but a smaller percentage of body weight?

 

[centrarchid]

Biggest birds tended to have biggest brains, but brains of biggest birds tended to be proportionally smaller relative to the larger bodies. I think they were selecting for size as well; the calmer birds appear to be larger. It can be hard to select for one trait only, especially when multiple loci involved.