Microchiropterans have a diminutive cerebral cortex, not an enlarged cerebellum, compared to megachiropterans and other mammals

@article{HerculanoHouzel2020MicrochiropteransHA,
  title={Microchiropterans have a diminutive cerebral cortex, not an enlarged cerebellum, compared to megachiropterans and other mammals},
  author={S. Herculano-Houzel and F. B. da Cunha and Jamie L. Reed and Consolate Kaswera-Kyamakya and Emmanuel Gillissen and P. Manger},
  journal={Journal of Comparative Neurology},
  year={2020},
  volume={528},
  pages={2978 - 2993}
}
Small echolocating bats are set apart from most other mammals by their relatively large cerebellum, a feature that has been associated to echolocation, as it is presumed to indicate a relatively enlarged number of neurons in the cerebellum in comparison to other brain structures. Here we quantify the neuronal composition of the cerebral cortex, cerebellum and remaining brain structures of seven species of large Pteropodid bats (formerly classified as megachiropterans), one of which echolocates… Expand

References

SHOWING 1-10 OF 58 REFERENCES
Elephants Have Relatively the Largest Cerebellum Size of Mammals
TLDR
The current study provides context for one aspect of the elephant brain in the broader picture of mammalian brain evolution by determining the volume of the cerebellum and its component parts in the brain of three adult male African elephants and compared this with published data from Asian elephants and other mammalian species. Expand
Coordinated Scaling of Cortical and Cerebellar Numbers of Neurons
TLDR
The numbers of neurons in the cerebral cortex and cerebellum are directly correlated across 19 mammalian species of four different orders, including humans, and increase concertedly in a similar fashion both within and across the orders Eulipotyphla (Insectivora), Rodentia, Scandentia and Primata. Expand
Relative Volume of the Cerebellum in Dolphins and Comparison with Anthropoid Primates
TLDR
Compared relative cerebellum volumes in two cetacean species, the bottlenose dolphin and the common dolphin, are compared with published data from anthropoid primates to suggest that there is possibly expansion of brain structures independent of strictly allometric processes. Expand
The elephant brain in numbers
TLDR
The hypothesis that the larger absolute number of neurons in the human cerebral cortex (but not in the whole brain) is correlated with the superior cognitive abilities of humans compared to elephants and other large-brained mammals is supported. Expand
Dogs Have the Most Neurons, Though Not the Largest Brain: Trade-Off between Body Mass and Number of Neurons in the Cerebral Cortex of Large Carnivoran Species
TLDR
Comparison of domestic and wild species suggests that the neuronal composition of carnivoran brains is not affected by domestication, and large carnivorans appear to be particularly vulnerable to metabolic constraints that impose a trade-off between body size and number of cortical neurons. Expand
Updated Neuronal Scaling Rules for the Brains of Glires (Rodents/Lagomorphs)
TLDR
The conformity to the previous rules of the new set of species, which includes the rabbit, suggests that the cellular scaling rules the authors have identified apply to rodents in general, and probably to Glires as a whole (rodents/lagomorphs), with one notable exception. Expand
Mammalian Brains Are Made of These: A Dataset of the Numbers and Densities of Neuronal and Nonneuronal Cells in the Brain of Glires, Primates, Scandentia, Eulipotyphlans, Afrotherians and Artiodactyls, and Their Relationship with Body Mass
TLDR
The relationship between numbers of neurons, neuronal densities and body mass is reexamine, and it is found that in the rest of brain, but not in the cerebral cortex or cerebellum, there is a single scaling rule that applies to average neuronal cell size, which increases with the linear dimension of the body. Expand
Nuclear organization of cholinergic, putative catecholaminergic and serotonergic systems in the brains of two megachiropteran species
TLDR
A cladistic analysis of 38 mammalian species and 82 characters from these systems show that megachiropterans form a sister group with primates to the exclusion of other mammals, including microchiropteran. Expand
Cellular Scaling Rules for the Brains of an Extended Number of Primate Species
TLDR
It is described that the cellular composition of the same brain structures of 5 other primate species, as well as humans, conform to the scaling rules identified previously, and that the updated power functions for the extended sample are similar to those determined earlier. Expand
Adaptation of brain regions to habitat complexity: a comparative analysis in bats (Chiroptera)
  • K. Safi, D. Dechmann
  • Biology, Medicine
  • Proceedings of the Royal Society B: Biological Sciences
  • 2005
TLDR
The results suggest that morphological adaptations related to flight and neuronal capabilities as reflected by the sizes of brain regions coevolved under similar ecological pressures. Expand
...
1
2
3
4
5
...