Browse Items · NEOMED Bibliography Database

Evolutionary aspects of the development of teeth and baleen in the bowhead whale.

In utero, baleen whales initiate the development of several dozens of teeth in upper and lower jaws. These tooth germs reach the bell stage and are sometimes mineralized, but toward the end of prenatal life they are resorbed and no trace remains…

A neurochemical hypothesis for the origin of hominids.

It has always been difficult to account for the evolution of certain human characters such as language, empathy, and altruism via individual reproductive success. However, the striatum, a subcortical region originally thought to be exclusively motor,…

Moth tails divert bat attack: evolution of acoustic deflection.

Adaptations to divert the attacks of visually guided predators have evolved repeatedly in animals. Using high-speed infrared videography, we show that luna moths (Actias luna) generate an acoustic diversion with spinning hindwing tails to deflect…

Eocene evolution of whale hearing.

The origin of whales (order Cetacea) is one of the best-documented examples of macroevolutionary change in vertebrates. As the earliest whales became obligately marine, all of their organ systems adapted to the new environment. The fossil record…

Skeletons of terrestrial cetaceans and the relationship of whales to artiodactyls.

Modern members of the mammalian order Cetacea (whales, dolphins and porpoises) are obligate aquatic swimmers that are highly distinctive in morphology, lacking hair and hind limbs, and having flippers, flukes, and a streamlined body. Eocene fossils…

Tags: *Biological Evolution, *Fossils, 2001, Animals, Bone and Bones/*anatomy & histology, Cetacea/anatomy & histology/*classification, Department of Anatomy & Neurobiology, Hussain S T, Nature, NEOMED College of Medicine, Phylogeny, Roe L J, Skeleton, Thewissen J G, Whales/anatomy & histology/*classification, Williams E M

Review and experimental evaluation of the embryonic development and evolutionary history of flipper development and hyperphalangy in dolphins (Cetacea: Mammalia).

Cetaceans are the only mammals to have evolved hyperphalangy, an increase in the number of phalanges beyond the mammalian plesiomorphic condition of three phalanges per digit. In this study, cetaceans were used as a novel model to review previous…

Raphe nuclei in three cartilaginous fishes, Hydrolagus colliei, Heterodontus francisci, and Squalus acanthias.

The vertebrate reticular formation, containing over 30 nuclei in mammals, is a core brainstem area with a long evolutionary history. However, not all reticular nuclei are equally old. Nuclei that are widespread among the vertebrate classes are…

Tags: *Biological Evolution, 1995, Animals, Cruce W L, Dogfish/*anatomy & histology/metabolism, Elasmobranchii/*anatomy & histology/metabolism, Enkephalin, Immunohistochemistry, Leucine/analysis, Raphe Nuclei/*anatomy & histology/chemistry, Serotonin/analysis, Sharks/*anatomy & histology/metabolism, Stuesse D C, Stuesse S L, The Journal of comparative neurology

Tags: *Adaptation, *Biological Evolution, 2007, Anatomical record (Hoboken, N.J. : 2007), Animals, Berta Annalisa, Cetacea/*anatomy & histology/physiology, Cooper Lisa Noelle, Dawson Susan D, Department of Anatomy & Neurobiology, Forelimb/*anatomy & histology/physiology, Morphogenesis, NEOMED College of Medicine, Newborn, Phylogeny, Physiological, Reidenberg Joy S

Browse Items (10 total)