... of the evolutionary history of the cetacean brain. The external features of the brain and associated sinuses of Raoellidae are so far only documented by the virtual reconstruction of the endocast based on specimens of the species Indohyus indirae . These specimens are however too deformed to fully access the external...

... quantitatively analyzed neuropil variation in the prefrontal, primary motor, and primary visual cortices of six species of Felidae ( Panthera leo, Panthera uncia, Panthera tigris, Panthera leopardus, Acinonyx jubatus , Felis sylvestris domesticus ) to investigate relationships with brain size, neuronal cell...

... International USA, Inc., East Meadow, NY, USA), were made perpendicular to the cortical surface and each recording site was marked on an enlarged photograph of the exposed brain surface, using surface blood vessels as landmarks to guide and label electrode penetration sites. The neuronal responses were...

...Ke Jiang; Ke Wei; Shi Xi Chen; Jing Huang Mudskippers are intertidal burrowing fish with unique living habits. So far, studies on the cytoarchitecture of the brain in fish with such behaviors remain limited. Therefore, documenting the neuroanatomy of this animal is of interest because of its unique...

..., including allometric patterns of brain and body size, as well as the pace of neurodevelopment. This analysis describes variation in the pace of embryonic development in eutherian mammals, drawing on a collected dataset of embryogenesis in fifteen species representing rodents, carnivores, ungulates...

... characteristic of domestication is the alterations in brain size and brain composition. The influence of domestication on brain morphology has been reviewed in the past, but mostly with a focus on mammals. Studies on avian species have seldom been taken into account. In this review, we would like to give...

...Kenneth C. Catania The parasitoid emerald jewel wasp ( Ampulex compressa ) subdues the American cockroach ( Periplaneta americana ) with a sting to the 1st thoracic ganglion, followed by a sting to the roach’s brain, causing long-term pacification. The wasp then leads the cockroach to a hole where...

... selected with a larger visual system (optic lobes) and brain over the course of being maintained in normal lighting conditions for 3 years (DF Light ), we used the CAFÉ assay method to investigate the differences in the two strains’ energetic demands in the present study. We therefore measured brain size...

... and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Model Diversity Brain Behavior Evolution With renewed recognition of the value of addressing neuroscience...

... within an invasive species. In Australia, the non-native common starling Sturnus vulgaris inhabits a range of habitats that vary in seasonal resource availability and distribution. We aimed to identify variations in the brain mass and hippocampus volume of starlings in Australia related to environmental...

..., thereby offering great potential for neuroanatomical studies. Within the brain, for example, diceCT distinguishes myelinated fiber tracts from unmyelinated cortices, nuclei, and ganglia and allows three-dimensional visualization of their anatomical interrelationships at previously unrealized spatial...

...Jitte Groothuis; Hans M. Smid Haller's rule states that brains scale allometrically with body size in all animals, meaning that relative brain size increases with decreasing body size. This rule applies both on inter- and intraspecific comparisons. Only 1 species, the extremely small parasitic wasp...

..., instructions or products referred to in the content or advertisements. Brain Neocortex Common dolphin (Delphinus delphis ) Wild boar ( Sus scrofa ) Cetartiodactyla Evolution Human ( Homo sapiens ) Potential primary projection areas Stereology Ecology We compare the brain size as well...

...Sam H. Ridgway; Kevin P. Carlin; Kaitlin R. Van Alstyne; Alicia C. Hanson; Raymond J. Tarpley We compared mature dolphins with 4 other groupings of mature cetaceans. With a large data set, we found great brain diversity among 5 different taxonomic groupings. The dolphins in our data set ranged...

... little research into its endocranial anatomy. CT scans of a skull of P. atrox from the Pleistocene La Brea Tar pits were used to generate the first virtual endocranium for this species and to elucidate previously unknown details of its brain size and gross structure, cranial nerves, and inner-ear...

... brains were fixed by immersion in 4% paraformaldehyde in 0.1 M phosphate buffer (pH 7.4) for 2 days. After dehydration through an ascending ethanol series, embryos, larvae, and adult brains were embedded in Technovit 8100 (Kulzer, Wehrheim, Germany). Complete serial sections (10 µm) were cut and Nissl...

... of this study was to assess the presence and neuroanatomical distribution of GnIH-like immunoreactivity in the brain of the anuran amphibian Pelophylax (Rana) esculentus (esculenta) and to explore any potential anatomical relationship with mammalian GnRH-immunoreactive (mGnRH-ir) elements. The GnIH-like...

...Leonida Fusani; Manfred Gahr Previous autoradiography studies illustrated that several areas of the avian brain can bind the pineal hormone melatonin. In birds, there are three melatonin receptor (MelR) subtypes: MelIa, MelIb and MelIc. To date, their brain distribution has not been studied in any...

...Tetyana Duka; Sarah M. Anderson; Zachary Collins; Mary Ann Raghanti; John J. Ely; Patrick R. Hof; Derek E. Wildman; Morris Goodman; Lawrence I. Grossman; Chet C. Sherwood With the evolution of a relatively large brain size in haplorhine primates (i.e. tarsiers, monkeys, apes, and humans...

... whales. It has long been thought that sperm whales have the largest brains of all living things, but our brain mass evidence, from published sources and our own specimens, shows that big males of these two species share this distinction. Despite this, we also find that cerebellum size is very different...