Results 81 to 90 of about 9,057 (215)

Bacterial composition of Polygenis (Polygenis) bohlsi bohlsi (Wagner, 1901) (Siphonaptera: Rhopalopsyllidae) associated with Thrichomys fosteri (Rodentia: Echimyidae) in the Brazilian Pantanal wetland

open access: yesMedical and Veterinary Entomology, EarlyView.
This study characterizes the bacteriome of Polygenis (Polygenis) bohlsi bohlsi fleas collected from free‐living Thrichomys fosteri in the Pantanal region of Brazil. The bacterial microbiota associated with male fleas exhibited greater phylogenetic diversity, and the overall community structure differed between the flea sexes.
Michelli Inácio Gonçalves Funnicelli   +13 more
wiley   +1 more source

Therian origin of INSL3/RXFP2-driven testicular descent in mammals

open access: yesFrontiers in Cell and Developmental Biology
Introduction: During early development in most male mammals the testes move from a position near the kidneys through the abdomen to eventually reside in the scrotum.
Brandon R. Menzies   +3 more
doaj   +1 more source

Eco‐Epidemiological Study of Seropositivity Against Rickettsia and Leptospira Agents in Rural Areas of Urabá, Colombia

open access: yesTropical Medicine &International Health, EarlyView.
ABSTRACT Introduction Rickettsioses and leptospirosis are infectious diseases often underdiagnosed due to limited knowledge about their epidemiology, pathophysiology, and clinical aspects. Objectives To characterize the seroprevalence and seroincidence of Rickettsia and Leptospira agents and determine their associated factors in rural areas of Urabá ...
Mariana Torres‐Bustamante   +4 more
wiley   +1 more source

Detection of antibodies against Leptospira spp in free-living marsupials caught in the Eastern Amazon

open access: yesRevista da Sociedade Brasileira de Medicina Tropical
INTRODUCTION: Serological surveys are important to assess the health status of wild animals. In this study, antibodies against Leptospira spp, causal agents of leptospirosis, were detected in free-living marsupials in the State of Pará, Brazil. METHODS:
Gleiciane Schupp de Sena Mesquita   +7 more
doaj   +1 more source

Short Report: First Outbreak of Atlantic Rainforest Spotted Fever in North‐Eastern of Brazil—Clinical Features and Eco‐Epidemiological Investigation

open access: yesZoonoses and Public Health, EarlyView.
ABSTRACT Introduction Since 2010, six cases of Atlantic rainforest spotted fever (ARSF) have been confirmed and reported in Brazil, a tick‐borne disease caused by Rickettsia parkeri strain Atlantic rainforest and associated with the tick Amblyomma ovale. So far, none of the cases have been associated with death. One of the cases occurred in 2018 in the
Gabriel Nunes de Oliveira   +13 more
wiley   +1 more source

Morphometric analysis of postnatal lung development in the gray short‐tailed opossum (Monodelphis domestica): An ultrastructural study

open access: yesThe Anatomical Record, Volume 309, Issue 11, Page 3397-3415, November 2026.
Abstract An ultrastructural morphometric analysis of the postnatal development of the lung in the gray short‐tailed opossum (Monodelphis domestica) has been conducted to evaluate the morphofunctional status of this poorly developed marsupial lung immediately following parturition.
Kirsten Ferner
wiley   +1 more source

How I Do It: A Novel Case Series of Office‐Based Laser Complete Excision of Vocal Fold Cysts

open access: yesThe Laryngoscope, Volume 136, Issue 11, Page 4876-4879, November 2026.
Office‐based complete excision of vocal fold cysts using Trublue laser via transnasal flexible endoscopy is a technically feasible alternative to conventional marsupialization, enabling en bloc removal under local anesthesia with excellent procedural tolerability.
Aurora Ka Yue Tam   +5 more
wiley   +1 more source

Fleas From the Northern Hairy‐Nosed Wombat and Other Mammalian Hosts of Australia

open access: yesAustral Entomology, Volume 65, Issue 4, November 2026.
ABSTRACT One of us (DKM) amassed a collection of 283 adult fleas (18 species) from donations by staff of the Queensland National Parks and Wildlife Service and other mammalogists, over 20 years (1967–87). Among this large collection were the first fleas to be found on three species of Australian mammals: (i) Lasiorhinus krefftii, the northern hairy ...
David K. Mardon   +2 more
wiley   +1 more source

Sit‐and‐Wait for the Agoutis: Dung Beetle Phoresy on Dasyprocta azarae in a Tropical Forest

open access: yesBiotropica, Volume 58, Issue 6, November 2026.
ABSTRACT We document the first case of phoresy by dung beetles with a rodent, involving Canthon (Goniocanthon) smaragdulus subviridis and agoutis (Dasyprocta azarae). Camera traps set in a tropical forest recorded 21 phoretic events, with agoutis carrying 1–6 beetles each. This behavior likely enhances how beetles locate fresh dung.
Fernanda C. Souza   +5 more
wiley   +1 more source

The variability of giraffe skull morphology

open access: yesJournal of Anatomy, Volume 249, Issue 5, Page 1068-1086, November 2026.
What does giraffe skull shape tell us about their development and evolution? Abstract Giraffe (Giraffa spp.) are among the most unique and charismatic extant animals, largely due to their distinct morphology. The evolutionary and developmental origin of ossicones is a key factor in giraffid biology, yet other features building their characteristic head
Nikolaos Kargopoulos   +15 more
wiley   +1 more source

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