Results 181 to 190 of about 2,710,928 (253)

Evaluating Bergmann's and Allen's rules in the long bones of the eastern gray squirrel

The Anatomical Record, EarlyView.
Abstract Ecogeographical rules predict variation in body size and appendage proportions across climatic gradients, yet intraspecific tests using long bones from wild populations remain limited among small mammals. This study tests the hypothesis that eastern gray squirrels (Sciurus carolinensis) conform to Bergmann's rule, that is, body size increases ...
Tyler Blake, Habiba Chirchir
wiley   +1 more source

Gut microbial remodeling as an ecological strategy for host metabolic management under environmental stress on the Xizang Plateau. [PDF]

BMC Microbiol
Pan C, Zhaxi Y, Pan J, Zhuoma C, Luo X, Ye W, Tan P, Li H, Zhang Z, Quzong D, Ouzhu D, Qiongla, Song T, Zhao W.   +13 more
europepmc   +1 more source

The “costly son” hypothesis: Sons exacerbate obstetrical dilemmas in humans and other mammals

The Anatomical Record, EarlyView.
Abstract Human childbirth has often been considered uniquely difficult among mammals, yet recent evidence suggests that obstructed labor and fetopelvic disproportion are widespread across placental mammals. Here, we propose the “costly son” hypothesis: because male offspring are typically larger at birth, they impose greater obstetric risk on mothers ...
Nicole D. S. Grunstra, Jonathan C. K. Wells   +1 more
wiley   +1 more source

One Health ethics in context: Justice, interdependence, and normative pluralism. [PDF]

One Health
Ford A, Boden L, Ferrinho P, Jukola S, Robertson L, Zinsstag J.   +5 more
europepmc   +1 more source

Body mass and sex estimation from lower carnassial tooth morphometry in the endangered Iberian wolf (Canis lupus signatus): An ecomorphological analysis of sexual size dimorphism

The Anatomical Record, EarlyView.
Abstract The Iberian wolf (Canis lupus signatus) is an endangered subspecies characterized by highly fragmented populations and increasing human–carnivore conflict across the Iberian Peninsula. Although body mass strongly influences predator–prey dynamics and ecological performance, quantitative assessments of sexual size dimorphism (SSD) and body mass
Leonardo Cotts, Eduardo Rossener, Ricardo Moratelli, Maria da Luz Mathias, Oscar Rocha‐Barbosa   +4 more
wiley   +1 more source

Biosynthesis-Informed Putative Annotation Reveals Alkaloid Profiles Across Tissues of <i>Anisodus luridus</i>. [PDF]

Metabolites
Zhao F, Xu Y, Lan X, Li Z.
europepmc   +1 more source

Redescription of †Eobrasilia coutoi (Metatheria: Polydolopimorphia), a unique sclerocarpophagous metatherian from the Palaeogene of South America: Systematic affinities, and paleoecological and evolutionary implications

The Anatomical Record, EarlyView.
Abstract The ‘Palaeogene strata’ of the Itaboraí Basin (upper Paleocene‐lower Eocene), Southeastern Brazil, has preserved 29 genera and almost 50 species of metatherians (about 65% of its mammalian diversity). Among them, Eobrasilia coutoi Simpson, 1947 is the most enigmatic due to its quite fragmentary nature.
Leonardo M. Carneiro, Hugo Bampi, Ana C. Bernardes‐Dias, Lidiane Asevedo, João P. P. Araújo, Matheus R. Arêas, Alessandra S. Machado, Ricardo T. Lopes, Rafael C. Silva, Marina B. Soares, Gustavo R. Oliveira   +10 more
wiley   +1 more source

Effect of Letrozole Administration on Reproductive Performance and Plasma Metabolites of Ewes During Estrus Synchronization Treatment. [PDF]

Life (Basel)
Li T, Wang X, Lu H, Lu T, Reyilaguli R, Lv H, Liu X, Zhang J, Li S, Xiao R, Zhao G.   +10 more
europepmc   +1 more source

Heat Stress and Gut Microbiome Dynamics in Poultry: Interplay, Consequences, and Mitigation Strategies

Animal Research and One Health, EarlyView.
Heat stress disrupts gut microbial balance in poultry, impairing nutrient absorption and immunity. This review outlines the interplay between thermal stress and microbiome dynamics and discusses integrative mitigation strategies, probiotics, phytogenics, cooling systems, and genetic adaptation to enhance poultry resilience.
O. E. Oke, A. I. Oni, O. A. Akosile, K. M. Oliyide, C. A. Ishola, M. O. Logunleko, O. A. Jimoh, C. P. Njoku, L. O. Fasasi, V. A. Uyanga   +9 more
wiley   +1 more source

Knowledge, attitude and practice of farmers towards ticks and tick borne diseases in selected districts of west Gojam, Ethiopia: Implications for control and prevention. [PDF]

Parasite Epidemiol Control
Tola G, Menkir S, Asmare Y, Wale M, Munshea A.   +4 more
europepmc   +1 more source