Results 191 to 200 of about 359,455 (303)

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

The Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx, Oliver Kersten, Youri van den Hurk, Brenna A. Frasier, Richard Sabin, Bastiaan Star, James H. Barrett   +6 more
wiley   +1 more source

Southern Hemisphere initiation of the mid-Pleistocene transition. [PDF]

Sci Adv
Basak C, Kapuge AKIU, Farmer JR, Symes E, Middleton JL, Gottschalk J, Arz HW, Lamy F, Winckler G, Cruz APS.   +9 more
europepmc   +1 more source

Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis

The Anatomical Record, EarlyView.
Abstract In birds, the neural canal houses a variety of anatomical structures including the spinal cord, meninges, spinal vasculature, and respiratory diverticula. Among these, paramedullary diverticula and the extradural dorsal spinal vein may leave behind osteological correlates in the form of pneumatic foramina and fossae, and a bilobed geometry of ...
Jessie Atterholt, M. Grace Burton, Mathew J. Wedel, Juan Benito, Ellen Fricano, Daniel J. Field   +5 more
wiley   +1 more source

A strategy for climate change stabilization experiments with AOGCMs AND ESMs. Aspen Global Change Institute 2006 Session. Earth system models: the next generation (Aspen, Colorado, July 30-August 5, 2006) [PDF]

, 2007
International CLIVAR Project Office
core   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

The Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

A Machine Learning-Based Dynamic SST Index for Long-Lead Malaria Prediction in the Peruvian Amazon. [PDF]

Geohealth
Pan M, Hu S, Janko MM, Zaitchik BF, Takahashi K, Lescano AG, Munayco CV, Pan WK.   +7 more
europepmc   +1 more source

Dental crown morphological variation and heterodonty in carcharhiniform sharks

The Anatomical Record, EarlyView.
Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley   +1 more source

Resolved tropical cyclones trigger CO₂ uptake and phytoplankton bloom in an Earth system model simulation. [PDF]

Proc Natl Acad Sci U S A
Nielsen DM, Chegini F, Serra N, Kumar A, Brüggemann N, Hohenegger C, Ilyina T.   +6 more
europepmc   +1 more source

Exploring the Roles of Tuna‐Associated Acinetobacter sp. YFT067: Implications for Host Health and Metabolism

Animal Research and One Health, EarlyView.
This study firstly isolated a tuna‐derived gut probiotic Acinetobacter seifertii YFT067. Dietary administration of YFT067 played significant roles in promoting growth performance, SCFAs production, lipid absorption, and metabolism of the host, indicating YFT067 as a promising probiotic candidate for enhancing tuna aquaculture productivity through ...
Ying Zou, Hai Huang, Qiongyao Fu, Zhiyuan Lu, Zhiqiang Guo   +4 more
wiley   +1 more source

Mapping the marine distribution of eulachon (Thaleichthys pacificus) in the Northeast Pacific using environmental DNA. [PDF]

Commun Biol
Liu OR, Shelton AO, Ramón-Laca A, Nichols KM, Ward EJ, Phillips EM, Zamon JE, Wells A, Kelly RP.   +8 more
europepmc   +1 more source