Results 91 to 100 of about 2,346 (206)

Patterns of variability of retinol levels in a harbour porpoise population from an unpolluted environment [PDF]

, 1999
Organochlorine compounds (OC) are known to induce vitamin A (retinoids) deficiency in mammals, which may be associated with impairment of immunocompetence, reproduction and growth.
Aguilar, A., Borrell, A., Brouwer, A., Cantos, G., Heide-Jørgensen, M.P., Jensen, Jette Donovan, Lockyer, C., Spenkelink, B.   +7 more
core   +4 more sources

Progesterone monitoring and gestation length in Amazonian manatees (Trichechus inunguis)

Theriogenology Wild
Knowledge of pregnancy length and the physiological parameters during pregnancy is an important tool for pregnancy diagnosis in free-ranging and captive individuals and for the correct husbandry of captive pregnant females. Therefore, this study aimed to
Rodrigo S. Amaral, Vera M.F. da Silva, José Anselmo d’Affonsêca Neto   +2 more
doaj   +1 more source

JUMPING FROM TURTLES TO WHALES: A PLIOCENE FOSSIL RECORD DEPICTS AN ANCIENT DISPERSAL OF CHELONIBIA ON MYSTICETES

Rivista Italiana di Paleontologia e Stratigrafia, 2016
The barnacles included in the superfamily Coronuloidea are epizoic symbionts of various marine vertebrates (including cetaceans, sirenians, and sea turtles) and other crustaceans (crabs and horseshoe crabs).
ALBERTO COLLARETA, MARK BOSSELAERS, GIOVANNI BIANUCCI   +2 more
doaj   +1 more source

Innervation patterns of sea otter (Enhydra lutris) mystacial follicle-sinus complexes [PDF]

, 2014
Sea otters (Enhydra lutris) are the most recent group of mammals to return to the sea, and may exemplify divergent somatosensory tactile systems among mammals.
Andres, Armed Forces Institute of Pathology, Armed Forces Institute of Pathology, Berta, Bininda-Emonds, Brecht, Brian Kot, Burgess, Catania, Christopher D. Marshall, Czech-Damal, Davidson, Dehnhardt, Dehnhardt, Dehnhardt, Dehnhardt, Dehnhardt, Dehnhardt, Duplaix, Dykes, Ebara, Erdsack, Estes, Estes, Fay, Finarelli, Gaspard, George, Ginter, Ginter, Gottschaldt, Grant, Halata, Halata, Halata, Hanke, Hyvärinen, Hyvärinen, Hyvärinen, Hyvärinen, Jacques, Kastelein, Kastelein, Kelly Rozas, Kenyon, Kvitek, Ladygina, Lee, Leffler, Ling, Lyras, Marshall, Marshall, Marshall, Mauck, McGovern, Melaragno, Mitchell, Pinto Hamuy, Radinsky, Radinsky, Radinsky, Reep, Reep, Reep, Reep, Repenning, Rice, Rice, Rice, Riedman, Sarko, Sivasothi, Stephens, Timm, Van Zyll de Jong, Verena A. Gill, Welker, Welker, Welker, Welker, Wilson, Woolsey, Yablokov, Yeates   +84 more
core   +1 more source

Power, competition, and the nature of history [PDF]

, 2019
Historians have debated whether pathways and events from the past to the present are influenced largely by contingency, the dependence of outcomes on particular prior conditions, or whether there is long-term emergent directional change.
Vermeij, Geerat J
core   +1 more source

Gestation and the evolution of vertical stance bipedal humans [PDF]

, 2011
During mammalian gestation a change in maternal stance alters the velocities of maternal blood flows and results in a changed rate of delivery and distribution of nutrients required to form the bone and tissue in various parts of a developing foetus. The
D.S. Robertson
core   +1 more source

Arctocephalus australis, South American Fur Seal [PDF]

, 2016
El texto incluye una revisión taxonómica, el rango de distribución, información poblacional, ecológica, genética, amenazas y estado de conservación.Fil: Cárdenas Alayza, S.. No especifica;Fil: Oliveira, L..
Crespo, Enrique Alberto, Cárdenas Alayza, S., Oliveira, L.   +2 more
core   +1 more source

On the supposed former Existence of a Sirenian

Proceedings of the Zoological Society of London, 1899
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

Contraction of the ROS Scavenging Enzyme Glutathione S-Transferase Gene Family in Cetaceans

G3: Genes, Genomes, Genetics, 2019
Cetaceans are a group of marine mammals whose ancestors were adaptated for life on land. Life in an aquatic environment poses many challenges for air-breathing mammals. Diving marine mammals have adapted to rapid reoxygenation and reactive oxygen species
Ran Tian, Inge Seim, Wenhua Ren, Shixia Xu, Guang Yang   +4 more
doaj   +1 more source

First record of a ‘fish’ blood fluke (Digenea: Aporocotylidae) from a marine mammal: Cardicola dhangali n. sp.

International Journal for Parasitology: Parasites and Wildlife, 2019
We describe the first known blood fluke from a marine mammal, the dugong, Dugong dugon (Sirenia: Dugongidae), which represents a new species of aporocotylid, Cardicola dhangali n. sp. (Digenea: Aporocotylidae).
Kate Suzanne Hutson, David Brendan Vaughan, David Blair   +2 more
doaj   +1 more source