Results 81 to 90 of about 12,644 (168)

Marine Flora and Fauna of the Northeastern United States Echinodermata: Crinoidea [PDF]

open access: yes, 1990
The crinoid fauna of the continental margin (0-1500 m) of northeastern North America (Georgia to Canada) includes 14 species in 13 genera and 5 families. We introduce the external morphology and natural history of crinoids and include a glossary of terms,
Dearborn, John H., Messing, Charles G.
core   +1 more source

Sex‐Specific doublesex Regulation Targeting the Color‐Patterning Gene h Underlies the Evolution of Wing Sexual Dimorphism in the Harlequin Ladybug Harmonia axyridis

open access: yesEvolution &Development, Volume 28, Issue 1, March 2026.
doublesex regulates sexual dimorphism in elytral color patterns of Harmonia axyridis by downregulating the color patterning gene h in males. This regulatory link diverged in derived color morphs, coinciding with the loss of sex‐specific elytral color patterns.
Soichi Yeki   +7 more
wiley   +1 more source

Salinity Induced Changes in the Leaf Anatomy of the Mangrove Avicennia Marina Along the Anthropogenically Stressed Tropical Creek [PDF]

open access: yes, 2011
The mangrove Avicennia marina is a dominant mangrove along the anthropogenically stressed tropical Thane creek, west coast of India. Leaf anatomy of the mangrove along the Thane creek, was assessed in relation to stationwise and seasonwise variations in ...
Borkar, M. U. (M)   +2 more
core  

GJB6 missense variant in a Labrador Retriever with paw pad hyperkeratosis

open access: yesAnimal Genetics, Volume 57, Issue 1, February 2026.
Abstract Palmoplantar keratoderma in humans is a condition defined by an abnormally thickened cornified skin layer on the hands and feet. In animals, the corresponding disease is commonly termed paw pad hyperkeratosis. It can be acquired due to repeated trauma, infections, cancer, or inflammatory dermatoses, or inherited due to pathogenic variants in ...
Stefan J. Rietmann   +3 more
wiley   +1 more source

Technological Innovations and Applications of Spatial Transcriptomics in Livestock and Poultry Research

open access: yesAnimal Research and One Health, Volume 4, Issue 1, Page 14-27, February 2026.
The paper is divided into three main sections: a review of the development of spatial transcriptomics technology, its applications in livestock and poultry research, and its future prospects. This article provides an overview of the current state of spatial transcriptomics in animal research, exploring its integration with multiomics technologies as ...
Mingyu Wang   +5 more
wiley   +1 more source

Allelopathy as a Strategy for Biological Invasion: Calotropis procera and Its Impact on Plant Succession

open access: yesChemistry &Biodiversity, Volume 23, Issue 2, February 2026.
Stages of the study on the allelopathic potential of Calotropis procera (Aiton) W. T. Aiton. The image shows the collection of plant material, the decomposition of organic matter, the identification of bioactive compounds, and the effects on the germination of Handroanthus impetiginosus (Mart. ex DC.) Mattos.
Bruno Melo de Alcântara   +7 more
wiley   +1 more source

Fluctuations and differential contraction during regeneration of Hydra vulgaris tissue toroids

open access: yes, 2012
We studied regenerating bilayered tissue toroids dissected from Hydra vulgaris polyps and relate our macroscopic observations to the dynamics of force-generating mesoscopic cytoskeletal structures.
Belytschko T   +20 more
core   +1 more source

Contrasting light demands determine the coordination of plants' non‐structural carbohydrates and economic strategy over the range of solar spectral composition

open access: yesFunctional Ecology, Volume 40, Issue 2, Page 534-552, February 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Non‐structural carbohydrates (NSC) are critical mediators of plant adaptation to fluctuating light environments. They are tightly coordinated with plant economic strategy, that is, leaf economics spectrum (LES) and root economics spectrum (RES).
Lulu Xie   +6 more
wiley   +1 more source

Determination of reproductive activity in sea urchins [PDF]

open access: yes, 1982
The most widely used quantitative method for assessing the reproductive activity is the gonad index (Giese and Pearse, 1974). But, in species such as sea urchins possessing considerable quantities of nutritive tissues in the gonad, both an increase ...
Vivek Raja, P
core  

Fraternal cooperation of hierarchical cancer parallels metazoan multicellularity and eusociality

open access: yesBiological Reviews, Volume 101, Issue 1, Page 400-418, February 2026.
ABSTRACT Metazoan multicellularity and eusociality — both outcomes of the fraternal major transitions — have numerous features in common such as uneven distribution of group‐establishing potential. In addition to this framework, I argue herein that the group‐forming principles of metazoan multicellularity and eusociality are analogous to hierarchical ...
Jibeom Choi
wiley   +1 more source

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