Results 91 to 100 of about 217,510 (291)

Bioimaging of sense organs and the central nervous system in extant fishes and reptiles in situ: A review

open access: yesThe Anatomical Record, EarlyView.
Bioimaging of the sense organs and brain of fishes and reptiles. Left panel: 3D reconstruction of the head and brain of the deep‐sea viperfish Chauliodus sloani following diceCT. Right panel: A 3D reconstruction of a 70‐day‐old embryo head of the bearded dragon Pogona vitticeps following diceCT, showing the position of the segmented brain within the ...
Shaun P. Collin   +9 more
wiley   +1 more source

Genomic characterization and related functional genes of γ- poly glutamic acid producing Bacillus subtilis

open access: yesBMC Microbiology
γ- poly glutamic acid (γ-PGA), a high molecular weight polymer, is synthesized by microorganisms and secreted into the extracellular space. Due to its excellent performance, γ-PGA has been widely used in various fields, including food, biomedical and ...
Jiayue Zhu   +9 more
doaj   +1 more source

A conventional hatchery vs. “on-farm” hatching of ducks in terms of microclimatic conditions and hatchability parameters - preliminary research

open access: yesJournal of Applied Poultry Research
Summary: The hatching period is critical in the technology of artificial incubation of poultry. In mass production of chicks, hatching stress is increased by additional stressors that do not occur in natural conditions.
Magdalena TRELA   +4 more
doaj   +1 more source

The impacts of environmental warming on Odonata: a review [PDF]

open access: yes, 2008
Climate change brings with it unprecedented rates of increase in environmental temperature, which will have major consequences for the earth's flora and fauna.
Adams J.   +165 more
core   +1 more source

Tooth eruption status and bite force determine dental microwear texture gradients in albino rats (Rattus norvegicus forma domestica)

open access: yesThe Anatomical Record, EarlyView.
Abstract Dental microwear texture analysis (DMTA) is widely applied for inferring diet in vertebrates. Besides diet and ingesta properties, factors like wear stage and bite force may affect microwear formation, potentially leading to tooth position‐specific microwear patterns.
Daniela E. Winkler   +2 more
wiley   +1 more source

From Development To Evolution: The Re-Establishment Of The Alexander Kowalevsky Medal [PDF]

open access: yes, 2002
The Saint Petersburg Society of Naturalists has reinstated the Alexander O. Kowalevsky Medal. This article announces the winners of the first medals and briefly reviews the achievements of A.O.
Gilbert, Scott F., Mikhailov, A. T.
core   +1 more source

Accelerometers can measure total and activity-specific energy expenditures in free-ranging marine mammals only if linked to time-activity budgets [PDF]

open access: yes, 2016
Peer ...
Boyd I.L.   +12 more
core   +3 more sources

Quantitative assessment of masticatory muscles based on skull muscle attachment areas in Carnivora

open access: yesThe Anatomical Record, EarlyView.
Abstract Masticatory muscles are composed of the temporalis, masseter, and pterygoid muscles in mammals. Each muscle has a different origin on the skull and insertion on the mandible; thus, all masticatory muscles contract in different directions. Collecting in vivo data and directly measuring the masticatory muscles anatomically in various Carnivora ...
Kai Ito   +4 more
wiley   +1 more source

Comparative and functional analysis of the digital mucus glands and secretions of tree frogs

open access: yesFrontiers in Zoology, 2019
Background Mucus and mucus glands are important features of the amphibian cutis. In tree frogs, the mucus glands and their secretions are crucial components of the adhesive digital pads of these animals.
Julian K.A. Langowski   +9 more
doaj   +1 more source

Foraging activity by the southern brown bandicoot (Isoodon obesulus) as a mechanism for soil turnover [PDF]

open access: yes, 2012
Mammals that forage for food by biopedturbation can alter the biotic and abiotic characteristics of their habitat, influencing ecosystem structure and function.
Anderson, H.   +3 more
core   +2 more sources

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