Results 1 to 10 of about 28,243 (112)

Comparative morphology and systematics of the cookiecutter sharks, genus Isistius Gill (1864) (Chondrichthyes: Squaliformes: Dalatiidae) [PDF]

open access: yesPLoS ONE, 2018
The dalatiid genus Isistius Gill (1864) has three valid species currently recognized in the literature: Isistius brasiliensis Quoy & Gaimard (1824), I. plutodus Garrick & Springer (1964), and I. labialis Meng, Zhu & Li (1985). The most common species, I.
Flávia de Figueiredo Petean   +1 more
exaly   +4 more sources

Moonless night sky increases Isistius species (cookiecutter shark) and live human contact [PDF]

open access: yesPLoS ONE
The nocturnal feeding behavior and zoogeographical habitat of cookiecutter sharks Isistius brasiliensis and Isistius plutodus (Isistius spp.) greatly reduces interaction of this species with live humans. Attacks on live humans are exceedingly rare with 7
Steven Minaglia
exaly   +4 more sources

Photophore Distribution and Enzymatic Diversity Within the Photogenic Integument of the Cookie-Cutter Shark Isistius brasiliensis (Chondrichthyes: Dalatiidae) [PDF]

open access: yesFrontiers in Marine Science, 2021
The cookie-cutter shark Isistius brasiliensis (Squaliformes: Dalatiidae) is a deep-sea species that emits a blue luminescence ventrally, except at the level of a black band located beneath the jaw.
Patrick Flammang   +2 more
exaly   +4 more sources

Morphological Variability and Function of Labial Cartilages in Sharks (Chondrichthyes, Elasmobranchii) [PDF]

open access: yesBiology, 2023
(1) Background: Labial cartilages (LCs), as their name suggests, lie in the folds of the connective tissue, the lips, framing the gape of elasmobranch chondrichthyans. As such, these cartilages lie laterally to the jaws and marginal teeth.
Claudia Klimpfinger, Jürgen Kriwet
doaj   +2 more sources

Defining Wound Healing Progression in Cetacean Skin: Characteristics of Full-Thickness Wound Healing in Fraser’s Dolphins (Lagenodelphis hosei) [PDF]

open access: yesAnimals, 2022
Cetaceans are tight-skinned mammals that exhibit an extraordinary capacity to heal deep soft tissue injuries. However, essential information of large full-thickness wound healing in cetaceans is still lacking.
Chen-Yi Su   +5 more
doaj   +2 more sources

Integrating multiple chemical tracers to elucidate the diet and habitat of Cookiecutter Sharks [PDF]

open access: yesScientific Reports, 2021
The Cookiecutter shark (Isistius brasiliensis) is an ectoparasitic, mesopelagic shark that is known for removing plugs of tissue from larger prey, including teleosts, chondrichthyans, cephalopods, and marine mammals.
Aaron B. Carlisle   +6 more
doaj   +2 more sources

First description of shark Isistius brasiliensis (Dalatiidae) in the waters of Russia [PDF]

open access: yesИзвестия ТИНРО, 2015
Description of rare shark Isistius brasiliensis caught off southern Kuril Islands on July 18, 1978. Morphometric parameters are presented, including counts of dorsal and caudal vertebras, teeth rows, mitral valves, and intestinal helical valve coils.
Vladimir N. Dolganov
doaj   +2 more sources

Unravelling Taxonomic Complexity in Elusive Cetaceans: Mitogenome Insights into Evolutionary History and Cryptic Diversity of Bryde's Whales [PDF]

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
The Bryde's whale is one of the least understood baleen whale species globally, limiting accuracy of regional and global conservation assessment. This study shows the occurrence of unique genetic lineages and evolutionary histories among Bryde's whale populations.
Dominique Paynee   +7 more
wiley   +2 more sources

Genomic Insights Into the Evolutionary History of Berardius Beaked Whales: Speciation Driven by Resource Specialization, Gigantism and Thermal Barriers? [PDF]

open access: yesMolecular Ecology, Volume 35, Issue 12, June 2026.
ABSTRACT Understanding the diversity of our oceans is fundamental now more than ever as climate change and human activities put increasing pressure on marine species and ecosystems. Beaked whales (family Ziphiidae) are among the most poorly understood marine mammals, in part due to their affinity to offshore underwater canyons and prolonged diving ...
Morgan L. McCarthy   +5 more
wiley   +2 more sources

Evolutionary trajectories of tooth histology patterns in modern sharks (Chondrichthyes, Elasmobranchii) [PDF]

open access: yesJournal of Anatomy, Volume 236, Issue 5, Page 753-771, May 2020., 2020
Using micro‐computed tomography techniques, we examined the tooth mineralization in modern shark clades (Elasmobranchii, Chondrichthyes). The inclusion of fossil taxa and computing ancestral states allowed us to trace back the development of different mineralization patterns in deep time.
Patrick L. Jambura   +7 more
wiley   +2 more sources

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