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Do different methods yield equivalent estimations of brain size in birds?
(2020-08-31)
The ratio of brain size to body size (relative brain size) is often used as a measure of relative investment in the brain in ecological and evolutionary studies on a wide range of animal groups. In birds, a variety of ...
The evolution of brain size and organization in vertebrates. A program for research
(1994)
In vertebrates, brain size variability relates to two main parameters: body size and ecological factors (in particular diet and foraging strategy). It has been considered by many authors that evolutionary brain growth is ...
Morphological adaptations for relatively larger brains in hummingbird skulls
(2018)
A common allometric pattern called Haller’s Rule states that small species have relatively larger brains and eyes than larger species of the same taxonomic group. This
pattern imposes drastic structural changes and ...
The evolutionary roles of nutrition selection and dietary quality in the human brain size and encephalization
(2018-12-01)
Background: Humans and other primates have evolved particular morphological and biological traits (e.g., larger brains, slower growth, longer-lived offspring) that distinguish them from most other mammals. The evolution ...
Equal Numbers of Neuronal and Nonneuronal Cells Make the Human Brain an Isometrically Scaled-Up Primate Brain
(WILEY-LISS, 2009)
The human brain is often considered to be the most cognitively capable among mammalian brains and to be much larger than expected for a mammal of our body size. Although the number of neurons is generally assumed to be a ...
Effects of Habitat and Social Complexity on Brain Size, Brain Asymmetry and Dentate Gyrus Morphology in Two Octodontid Rodents
(Karger, 2016-04)
Navigational and social challenges due to habitat conditions and sociality are known to influence dentate gyrus (DG) morphology, yet the relative importance of these factors remains unclear. Thus, we studied three natural ...
Effects of Habitat and Social Complexity on Brain Size, Brain Asymmetry and Dentate Gyrus Morphology in Two Octodontid Rodents
(Karger, 2016)
Navigational and social challenges due to habitat conditions and sociality are known to influence dentate gyrus (DG) morphology, yet the relative importance of these factors remains unclear. Thus, we studied three natural ...
Cross-species and intraspecies morphometric analysis of the corpus callosum
(S. Karger AG, 2000)
A cross-species morphometric study of the corpus callosum was performed in the rat, rabbit, cat, dog, horse, cow and human. Across species, the results indicate a strong, although less than linear, dependency of callosal ...
Updated Neuronal Scaling Rules for the Brains of Glires (Rodents/Lagomorphs)
(Karger, 2011-01-01)
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, across a sample of 6 species, from mouse to ...