Results 91 to 100 of about 2,310 (195)
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. +7 more
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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 +2 more
doaj +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 +2 more
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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
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Duas novas ocorrências de Ziphiidae (Cetacea) nos Açores e actualização da lista de espécies de cetáceos [PDF]
, 1993 Os arrojamentos ocorridos em 1989, dum zífio, Ziphius cavirostris G. Cuvier, 1823, na ilha de Santa Maria, e duma baleia de bico-de-Gervais, Mesoplodon europaeus (Gervais, 1855) na ilha do Faial, representam os primeiros registos destas espécies paro o ...
Gonçalves, João M. +2 more
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Dental eruption in afrotherian mammals. [PDF]
, 2011 BACKGROUND: Afrotheria comprises a newly recognized clade of mammals with strong molecular evidence for its monophyly. In contrast, morphological data uniting its diverse constituents, including elephants, sea cows, hyraxes, aardvarks, sengis, tenrecs ...
Asher, Robert J, Lehmann, Thomas
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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
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A white humpback whale (Megaptera novaeangliae) in the Atlantic Ocean, Svalbard, Norway, August 2012 [PDF]
, 2013 A white humpback whale (Megaptera novaeangliae) was observed on several occasions off Svalbard, Norway, during August 2012. The animal was completely white, except for a few small dark patches on the ventral side of its fluke.
Bjarni Mikkelsen +28 more
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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 +4 more
doaj +1 more source
Azores cetaceans field guide [PDF]
, 2016 Os Cetáceos (baleias e golfinhos) são um dos 5 grupos de mamíferos marinhos, juntamente com os pinípedes (focas, otárias e morsas), os sirénios (manatins e dugongos), as lontras e os ursos polares.
Azevedo, José M. N. +4 more
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