Results 71 to 80 of about 26,345 (228)

Toxinology of Cephalopods: A Review Article

Iranian South Medical Journal, 2021
Most cephalopods are venomous organisms whose major venom constituents include protein toxins, small toxic molecules, enzymes, and amines. Neurotoxic cephalotoxins are protein toxins that were first isolated from this family. They are categorized into SE-
Hossien Mohebbi, Ammar Maryamabadi
doaj  

Metabolic trade-offs associated with homeostatic adjustments in pelagic and benthic cephalopods: Comparative evaluations of NH4+/H+ transport machinery in gills

Frontiers in Marine Science, 2022
Cephalopods are ancient mollusks that can be found in many different ecological niches in the ocean ranging from the intertidal zone to the deep-sea abyss.
Meng-Wei Lin, Meng-Wei Lin, Pou-Long Kuan, Po-Hsuan Sung, Yung-Che Tseng   +4 more
doaj   +1 more source

Cephalopods as Predators: A Short Journey among Behavioral Flexibilities, Adaptions, and Feeding Habits

Frontiers in Physiology, 2017
The diversity of cephalopod species and the differences in morphology and the habitats in which they live, illustrates the ability of this class of molluscs to adapt to all marine environments, demonstrating a wide spectrum of patterns to search, detect,
R. Villanueva, V. Perricone, G. Fiorito
semanticscholar   +1 more source

Evidence for adaptive explanations of semelparity in animals

Biological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher, Roberto Salguero‐Gómez   +1 more
wiley   +1 more source

Metal Concentration in Muscle and Digestive Gland of Common Octopus (Octopus vulgaris) from Two Coastal Site in Southern Tyrrhenian Sea (Italy)

Molecules, 2019
Octopus vulgaris constitute an important part of most suitable marine resources for human consumption, however, they can represent a source in chemical contaminants intake such as heavy metals. In this scenario, the aim of the study was the evaluation of
Andrea Ariano, Raffaele Marrone, Rebecca Andreini, Giorgio Smaldone, Salvatore Velotto, Serena Montagnaro, Aniello Anastasio, Lorella Severino   +7 more
doaj   +1 more source

Responses of Antarctic seabird populations to past climate change

Ecography, EarlyView.
Higher‐order predators such as Antarctic seabirds serve as ecological indicators of environmental change and provide a crucial trophic link between marine and terrestrial ecosystems. Despite their prevalence and significance in the Antarctic ecosystem, there is a lack of understanding of the impacts of major regime shifts in paleoclimate on flighted ...
Elize Y. X. Ng, Louise Emmerson, Barbara Wienecke, Fabiola León Miranda, Colin Southwell, Juliana A. Vianna, Christopher P. Burridge   +6 more
wiley   +1 more source

The hydrostatics of Paleozoic ectocochleate cephalopods (Nautiloidea and Endoceratoidea) with implications for modes of life and early colonization of the pelagic zone

Palaeontologia Electronica, 2019
Understanding the hydrostatic properties of ectocochleate cephalopods is essential to study the functional morphology of their shells. The conditions for neutral buoyancy, static orientation of the living animal, and their hydrostatic stability are key ...
D. Peterman, C. C. Barton, M. Yacobucci
semanticscholar   +1 more source

Must Longtermists Wish Us All Dead? A Quadrilemma

Journal of Applied Philosophy, EarlyView.
ABSTRACT Longtermists assign great moral importance to making the long‐term future as good as possible, especially by ensuring the survival of humanity. We argue, to the contrary, that on assumptions that are plausible, conservative, or shared by leading longtermists, human extinction will likely augment total utility among human and non‐human animals ...
Nir Eyal, Bastian Steuwer, Shai Meiri
wiley   +1 more source

Cephalopods: Ambassadors for rethinking cognition.

, 2021
Traditional approaches in comparative cognition have a long history of focusing on a narrow range of vertebrate species. However, in recent years the range of model species has expanded.

core   +2 more sources

Spatiotemporal distribution patterns of cephalopods and their responses to changes in the marine environment in the coastal waters of Zhejiang, China

Frontiers in Marine Science
IntroductionLike pelagic fishes, cephalopods represent fishery resources with high worldwide potential and an important evolutionary node animal group. Thus, exploring the spatial and seasonal variations in cephalopod distribution and their associations ...
Jun Liang, Jun Liang, Yongdong Zhou, Yongdong Zhou, Tian Wu, Feng Chen, Feng Chen, Kaida Xu, Kaida Xu, Guangjie Fang, Yazhou Zhang, Yazhou Zhang   +11 more
doaj   +1 more source