Results 81 to 90 of about 32,151 (234)

Developmental stage ordering yields greater cranial mineralization sequence resolution than embryo size or days since oviposition: A case study using the gekkotan Eublepharis macularius (Blyth, 1854)

open access: yesJournal of Anatomy, EarlyView.
We employ a set of leopard gecko embryos for which size, day of development, and developmental stage are known to assess which timetable accords with the greatest resolution of cranial mineralization events. Developmental staging yielded the best outcome. Abstract Mineralization sequences of cranial elements (often referred to as ossification sequences)
Patrick A. D. Wise   +2 more
wiley   +1 more source

The first complete mitochondrial genomes of sawtail surgeonfishes (Acanthuridae: Prionurus)

open access: yesMitochondrial DNA. Part B. Resources, 2020
Surgeonfishes of the family Acanthuridae are primarily large-bodied herbivores that provide critical ecosystem services to coral reefs. Five out of the six genera that comprise the family have had mitochondrial genomes sequenced, with the exception of ...
William B. Ludt   +2 more
doaj   +1 more source

Ictiólogos de la Argentina: Juana Yolanda Dziekonska de Ciechomski. [PDF]

open access: yes, 2015
This series will include all those people who, by means of their contributions, great and small, played a part in the consolidation of ichthyology in Argentina.
Ehrlich, Martín D.   +2 more
core  

Assessment of Biology Majors’ Versus Nonmajors’ Views on Evolution, Creationism, and Intelligent Design [PDF]

open access: yes, 2008
The controversy around evolution, creationism, and intelligent design resides in a historical struggle between scientific knowledge and popular belief.
Espinosa, Avelina   +1 more
core   +2 more sources

Morphometric Comparison of Two populations of Waspi Cabdio morar (Hamilton, 1822) from The Mokran and Mashkil Basins – Sistan and Baluchestan Province [PDF]

open access: yesبوم‌شناسی آبزیان, 2019
The morphometric comparison of Waspi fish, Cabdio morar based on 19 morphometric traits were done on 40 and 63 specimens, respectively from Maskil and Sarbaz rivers, Sistan and Baluchistan province.
Manoochehr Nasri   +3 more
doaj  

Apical Cell-Cell Adhesions Reconcile Symmetry and Asymmetry in Zebrafish Neurulation

open access: yesiScience, 2018
Summary: The symmetric tissue and body plans of animals are paradoxically constructed with asymmetric cells. To understand how the yin-yang duality of symmetry and asymmetry are reconciled, we asked whether apical polarity proteins orchestrate the ...
Chuanyu Guo   +6 more
doaj   +1 more source

Hippopotamyrus ansorgii species complex in the Upper Zambezi River System with a description of a new species, H. szaboi (Mormyridae) [PDF]

open access: yes, 2004
Specimens referable to Hippopotamyrus ansorgii sampled from the Upper Zambezi River System within Caprivi (Namibia) represent a complex of three species, two of which coexist in the Upper Zambezi River, and a third that inhabits a nearby river, the ...
Kramer, Bernd   +2 more
core   +1 more source

The Flooding Gradient Affects Seed Dispersal by Fruit‐Eating Fishes in Amazonian Whitewater Floodplain Forests

open access: yesBiotropica, Volume 58, Issue 3, May 2026.
This research approaches the interaction between frugivorous fish and the flooded forests in the central Amazon. We evaluated the fruit consumption by fish and the seed dispersal potential along the flood gradient. We tested the hypothesis that the role of fish as seed dispersers varies between low várzea (LV) and high várzea (HV) forests.
Gilvan Costa   +6 more
wiley   +1 more source

MORPHOLOGICAL VARIATION OF THREESPINE STICKLEBACK (GASTEROSTEUS ACULEATUS) ON DIFFERENT STAGES OF SPAWNING PERIOD

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018
This study uses morphometric analysis for better understanding processes occurring during the spawning period in the population of threespine stickleback Gasterosteus aculeatus.
Ahmed S. A. Dorgham   +5 more
doaj   +1 more source

Ictiólogos de la Argentina: Juan Manuel Cordini. [PDF]

open access: yes, 2009
This series will include all those people who, by means of their contributions, great and small, played a part in the consolidation of ichthyology in Argentina. The general plan of this work consists of individual factsheets containing a list of works
López, Hugo Luis, Ponte Gómez, Justina
core  

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