We use a recent wave of data to confirm that Haller's rule of brain–body allometry, for
smaller species to have relatively larger brains, holds for invertebrates as well as …

Throughout the animal kingdom, Haller's rule holds that smaller individuals have larger
brains relative to their body than larger-bodied individuals. Such brain-body size allometry is …

Comparative neurobiologists have provided ample evidence that in vertebrates small
animals have proportionally larger brains: in a double-logarithmic plot of brain weight versus …

Insectivores represent extremes in mammalian body size and brain size, retaining various
“primitive” morphological characteristics, and some species of Insectivora are thought to …

Attempts to relate brain size to behaviour and cognition have rarely integrated information
from insects with that from vertebrates. Many insects, however, demonstrate that highly …

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 …

Relative brain size (measured as gross brain size after body size effects are removed) differs
systematically between families of rodents, insectivores and lagomorphs. The Sciuridae …

Brain size scales as different functions of its number of neurons across mammalian orders
such as rodents, primates, and insectivores. In rodents, we have previously shown that …

The observed increase in brain size (E) with body size (P)'from mouse to elephant'may be
described by a power relation E= kPb, where b is near 2/3 or 3/4. That this reflects a single …

Many comparative neurobiological studies seek to connect sensory or behavioural attributes
across taxa with differences in their brain composition. Recent studies in vertebrates suggest …