Reconstructing the evolution of brain information-processing capacity is paramount for
understanding the rise of complex cognition. Comparative studies of brain evolution typically …

More complex brains and behaviors have arisen repeatedly throughout both vertebrate and
invertebrate evolution. The challenge is to tease apart the forces underlying such change. In …

While larger brains possess concertedly larger cerebral cortices and cerebella, the relative
size of the cerebral cortex increases with brain size, but relative cerebellar size does not. In …

Across the animal kingdom, we see remarkable variation in brain size. This variation has
even increased over evolutionary time. Traditionally, studies aiming to explain brain size …

We present a detailed reanalysis of the comparative brain data for primates, and develop a
model using path analysis that seeks to present the coevolution of primate brain (neocortex) …

Enough species have now been subject to systematic quantitative analysis of the
relationship between the morphology and cellular composition of their brain that patterns …

Highlights•Studies in social bees have proposed various forms of sophisticated
cognition.•Bees display a variety of cognitive phenomena including attention, social learning …

Extensive studies of vertebrates have shown that brain size scales to body size following
power law functions. Most animals are substantially smaller than vertebrates, and extremely …

Comparative studies of the brain in mammals suggest that there are general architectural
principles governing its growth and evolutionary development. We are beginning to …

The human brain has often been viewed as outstanding among mammalian brains: the most
cognitively able, the largest-than-expected from body size, endowed with an overdeveloped …