Commentary on different constraints on brain evolution
Fish are an ancient and diverse group of vertrebrates, which makes them an interesting comparative group for studies of mammalian brain evolution. However, caution is required given their distinctive embodiment and environment: cold-blooded bodies and life-long growth in an oxygen-poor habitat.
Froese, T., & Froese, R. (2019). Comparisons of static brain–body allometries across vertebrates must distinguish between indeterminate and determinate growth. Nature Ecology & Evolution. doi:10.1038/s41559-019-0984-1