Results 71 to 80 of about 5,114 (205)

Divorce in the barn owl: securing a compatible or better mate entails the cost of re-pairing with a less ornamented female mate. [PDF]

open access: yes, 2014
Two nonmutually exclusive hypotheses can explain why divorce is an adaptive strategy to improve reproductive success. Under the 'better option hypothesis', only one of the two partners initiates divorce to secure a higher-quality partner and increases ...
Dreiss, A.N., Roulin, A.
core   +1 more source

Atypical Melanosis on Acral Skin or Early Acral Lentiginous Melanoma? Reappraising an Ambiguous Concept in Acquired Acral Pigmented Lesions

open access: yes
Journal of Cutaneous Pathology, EarlyView.
Marcial Álvarez‐Salafranca   +5 more
wiley   +1 more source

The discovery of two spotted leopards (Panthera pardus) in Peninsular Malaysia [PDF]

open access: yes, 2015
We discovered the presence of two individual spotted leopards Panthera pardus in Ulu Muda Forest Reserve, a previously under-researched selectively logged rainforest of Peninsular Malaysia.
Campos-Arceiz, Ahimsa   +4 more
core   +1 more source

Clinical descriptive and long‐term outcome of melanocytic uveal lesions in young dogs: 40 cases (45 eyes) including 13 cases of sector iridectomy

open access: yesVeterinary Ophthalmology, Volume 28, Issue 2, Page 371-385, March 2025.
Abstract Purpose To describe the clinical features surgical technique, early and long‐term outcome with or without surgery, and histopathological findings of melanocytic anterior uveal lesions in young dogs. Methods Medical records of dogs at a guide dog facility removed from training due to a pigmented iris lesion were reviewed from 2014 to 2021 ...
Valerie Liliane Dufour   +6 more
wiley   +1 more source

Sex- and melanism-specific variations in the oxidative status of adult tawny owls in response to manipulated reproductive effort. [PDF]

open access: yes, 2015
Oxidative stress, determined by the balance between the production of damaging reactive oxygen species (ROS) and antioxidant defences, is hypothesized to play an important role in shaping the cost of reproduction and life history trade-offs. To test this
Bize, P.   +4 more
core   +1 more source

Steroidogenic Factor 1 (SF1) Immunohistochemical Stain Is Sensitive and Specific for the Cytopathologic Identification of Intrapancreatic Ectopic Splenic Tissue

open access: yesDiagnostic Cytopathology, Volume 54, Issue 5, Page 327-331, May 2026.
ABSTRACT Background Accessory spleens result from failure of splenic fusion during development and are occasionally located in the pancreatic tail, radiographically appearing as solid or solid/cystic lesions. Fine needle aspiration (FNA) easily identifies accessory spleens in most samples based on architecture and using CD8 to highlight splenic ...
Adeyinka Akinsanya   +5 more
wiley   +1 more source

The tale of the black viper: distribution and bioclimatic niche modelling of melanistic Vipera aspis in Italy

open access: yesActa Herpetologica
For decades, the evolutionary role of melanism in reptiles has been highly debated. According to the thermal melanism hypothesis, melanistic phenotypes should provide thermal advantages, thus positively impacting various biological aspects of these ...
Matteo R. Di Nicola   +6 more
doaj   +1 more source

Temporal stability of morph frequency in central European populations of Adalia bipunctata and A. decempunctata (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2005
In central Europe Adalia bipunctata (L.) occurs in two main colour morphs (typical, melanic), and A. decempunctata (L.) occurs in 3 morphs (spotted, chequered, dark).
Alois HONĚK   +2 more
doaj   +1 more source

A composite six bp in-frame deletion in the melanocortin 1 receptor (MC1R) gene is associated with the Japanese brindling coat colour in rabbits (Oryctolagus cuniculus) [PDF]

open access: yes, 2010
Background: In the domestic rabbit (Oryctolagus cuniculus), classical genetic studies have identified five alleles at the Extension locus: ED (dominant black), ES (steel, weaker version of ED), E (wild type, normal extension of black), eJ(Japanese ...
Luca Fontanesi   +9 more
core   +2 more sources

Alzheimer's disease and mixed pathologies as a hidden contributor to fatal hypothermia: A large‐scale forensic autopsy‐based study

open access: yesBrain Pathology, Volume 36, Issue 3, May 2026.
We investigated neuropathological manifestations of hypothermia in 168 cases. Patients aged 65 years or more constituted 80% of the total cohort. Alzheimer's disease was the most common comorbidity, affecting 40% of all patients. Abstract There is a paucity of autopsy‐based studies providing detailed neuropathological characteristics of fatal ...
Shojiro Ichimata   +2 more
wiley   +1 more source

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