Results 51 to 60 of about 11,488 (329)

Estimating abundance of Eastern Canada-West Greenland bowhead whales using genetic mark-recapture analyses

open access: yesGlobal Ecology and Conservation, 2023
The Eastern Canada-West Greenland (EC-WG) bowhead whale (Balaena mysticetus) population is widely distributed across the eastern Canadian Arctic and across Baffin Bay to the western coast of Greenland.
Brooke A. Biddlecombe   +4 more
doaj   +1 more source

Gray whale Eschrichtius robustus in Russian Far East: the history of discovery, research, and harvesting

open access: yesИзвестия ТИНРО, 2014
Discovery and research of gray whale in Chukotka are outlined and recent data on its whaling are presented on the base of authors’ and cited sources. The species was described for the first time in the late 16th century.
Sergey A. Blokhin, Denis I. Litovka
doaj   +1 more source

Mechanisms of Aristolochic Acid Resistance in Specialist Butterflies and Evolutionary Insights for Potential Protective Pathways

open access: yesAdvanced Science, EarlyView.
The study provides an extreme example of insect adaptation to highly toxic defenses of host plants, and investigates the complex strategies to resist carcinogenic aristolochic acids, including physical isolation, metabolic detoxification, and DNA repair.
Yang Luan   +20 more
wiley   +1 more source

Using Ancient DNA Analysis and Radiocarbon Dating to Determine the Provenance of an Unusual Whaling Artifact

open access: yesFrontiers in Ecology and Evolution, 2020
Natural history collections provide a critical temporal view of past biodiversity and are instrumental in the study of extinct populations. However, the value of historical specimens relies on correct species identification, collection date and ...
Caitlin Mudge   +3 more
doaj   +1 more source

Neural Network‐Based Permittivity Engineering of Magnetic Absorbers for Customizable Microwave Absorption

open access: yesAdvanced Science, EarlyView.
A neural network‐enabled permittivity engineering paradigm is introduced, transcending traditional trial‐and‐error design. By decoupling electromagnetic parameters and screening a high‐throughput feature space, an ultrathin (1.0 mm) magnetic absorber is inversely designed, experimentally achieving a superior and customizable 5.1 GHz bandwidth and ...
Chenxi Liu   +9 more
wiley   +1 more source

Visual narratives and the depiction of whaling in north European rock art: the case of the White Sea

open access: yesLes Nouvelles de l’Archéologie, 2022
The rock art petroglyps of the White Sea represent possibly the earliest depictions of whaling in the world and allow us to understand the 6,000-years-old relationship between whales and human communities.
Dr Liliana Janik
doaj   +1 more source

Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin

open access: yesThe Anatomical Record, EarlyView.
Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley   +1 more source

Encountering whales: How encounter rates became the basis for managing whaling

open access: yesNAMMCO Scientific Publications, 2009
Declining rates of encountering whales, including both sighting and catching, were noted by whalers throughout the 19th century, and these declines became the first indication that whaling was adversely affecting whale abundance.
Tim D Smith
doaj   +1 more source

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

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

open access: yesThe Anatomical Record, EarlyView.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae   +4 more
wiley   +1 more source

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