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The Distribution of Toxoplasma gondii Cysts in the Brain of a Mouse with Latent Toxoplasmosis: Implications for the Behavioral Manipulation Hypothesis
Background The highly prevalent parasite Toxoplasma gondii reportedly manipulates rodent behavior to enhance the likelihood of transmission to its definitive cat host. The proximate mechanismsExpand
Birds have primate-like numbers of neurons in the forebrain
Significance Birds are remarkably intelligent, although their brains are small. Corvids and some parrots are capable of cognitive feats comparable to those of great apes. How do birds achieveExpand
Magnetic alignment in mammals and other animals
Magnetic alignment (MA) constitutes the simplest directional response to the geomagnetic field. In contrast to magnetic compass orientation, MA is not goal directed and represents a spontaneous,Expand
Extremely low-frequency electromagnetic fields disrupt magnetic alignment of ruminants
Resting and grazing cattle and deer tend to align their body axes in the geomagnetic North-South direction. The mechanism(s) that underlie this behavior remain unknown. Here, we show that extremelyExpand
Neuroanatomy of Magnetoreception: The Superior Colliculus Involved in Magnetic Orientation in a Mammal
The neural substrate subserving magnetic orientation is largely unknown in vertebrates and unstudied in mammals. We combined a behavioral test for magnetic compass orientation in mole rats andExpand
Unusual cone and rod properties in subterranean African mole‐rats (Rodentia, Bathyergidae)
We have determined the presence of spectral cone types, and the population densities of cones and rods, in subterranean mole‐rats of the rodent family Bathyergidae, for which light and vision seemsExpand
The visual system in subterranean African mole-rats (Rodentia, Bathyergidae): Retina, subcortical visual nuclei and primary visual cortex
We have studied the visual system of subterranean mole-rats of the rodent family Bathyergidae, for which light and vision seem of little importance. The eye diameter varies between 3.5mm inExpand
Further support for the alignment of cattle along magnetic field lines: reply to Hert et al.
Hert et al. (J Comp Physiol A, 2011) challenged one part of the study by Begall et al. (PNAS 105:13451–13455, 2008) claiming that they could not replicate the finding of preferential magneticExpand
Subcortical visual system of the African mole‐rat Cryptomys anselli: to see or not to see?
We studied the retinal projections, the distribution of cytochrome oxidase activity and the cyto‐ and myeloarchitecture of the subcortical visual system in the subterranean Ansell's mole‐ratExpand