Michael R. McGowen, Lawrence I. Grossman, Derek E. Wildman, Research output: Contribution to journal › Article.

?Pa at 1. m, this dolphin may have a maximum echolocation range of 100-600. m in the ocean. Twenty-seven of these genes are associated with the nervous system, including those related to human intellectual disabilities, synaptic plasticity and sleep. While certain other marine vertebrates will be discussed briefly in the latter part of this review, we are primarily concerned with the toothed whales. Biol Rev 35:187–230. Proportions of mitochondrion-expressed genes in…, Proportions of mitochondrion-expressed genes in each d N/ d S bin in five…, NLM

This site needs JavaScript to work properly. ), Szymanski MD, Bain DE, Henry KR (1995) Auditory evoked potentials of a killer whale (, Szymanski M, Supin D, Ya A, Bain DE, Henry KR (1998) Killer whale (.
The small whales called dolphins, such as the bottlenose dolphin Tursiops truncatus, have sensitive, broadband hearing extending to at least 150. kHz. All dolphins have relatively large brains. Some toothed whales presumably can...,“emit sounds so intense that their prey is debilitated and capture made easier” (Norris and Møhl, 1983). Bullock TH, Ridgway SH (1972) Evoked potentials in the central auditory system of alert porpoises to their own and artificial sounds. Fish JF, Johnson CS, Ljungblad DK (1976) Sonar target discrimination by instrumented human divers.

J Morphol 188:157–165. Caldwell MC, Caldwell DK (1968) Vocalization of naïve captive dolphins in small groups. New Haven, CT: Yale University Press, pp. They are claimed to be almost as intelligent as humans (the common way to determine the intelligence of a species is by the convulutedness of its brain (Gyri and Suculi). We relate the results of this literature review to potential interactions with the ETP Prevalence of Epidermal Conditions in Critically Endangered Indo-Pacific Humpback Dolphins (Sousa ch... Cetaceans observed in the coastal waters of Namibe Province, Angola, during summer and winter 2008. Wood FG, Evans WE (1980) Adaptiveness and ecology of echolocation in toothed whales. For comparison, we included brains of other toothed whale species. The evolutionary process of adaptation to an obligatory aquatic existence dramatically modified cetacean brain structure and function. Smith PF (1985) Toward a standard for hearing conservation for underwater and hyperbaric environments. Discover (and save!) The Dolphin therapy – a remedy for stress Published April 8, 2014 | By nastya It is proved that the ultrasound emitted by the dolphins in communication, stimulates the cerebral cortex and the internal organs, has a beneficial effect on the Central nervous system. Namibe Province in southern Angola was the site of several historical whaling stations, but current knowledge of the occurrence of large whales and odontocete species is lacking. Dolphins hear in a frequency range 7.5 times wider than the human. In addition, some cetaceans have evolved large brains and complex cognitive capacities. Cetaceans (dolphins and whales) have undergone a radical transformation from the original mammalian bodyplan.

However, further survey work is required to clarify the distribution, ecology and potential threats to cetacean species in the region. Finally, the next steps required to ultimately reach a universal consensus regarding bat phylogenetic relationships are discussed together with future directions for elucidating the genomic basis of echolocation in mammals and the extent of molecular “trade-offs” that occur in these unique species. We encountered selection in other genes potentially related to cetacean adaptations such as glucose and lipid metabolism, dermal and lung development, and the cardiovascular system. 121–127. Subject Classification: [43]65.62; [43]30.82. primary neocortical areas (M1, S1, A1, V1) of the Indian river dolphins and compared to those of the bottlenose dolphin with respect to layers III and V. These neocortical fields were identified using existing electrophysiological and morphological data from marine dolphins as to their topography and histological structure, including the characteristics of the neuron populations concerned. The solution that evolution found for dolphins is that while resting, they have to keep a cerebral hemisphere active to consciously breathe and to …