Results 21 to 30 of about 15,626 (223)

Elemental Ratios in Cuttlebone Indicate Growth Rates in the Cuttlefish Sepia pharaonis

open access: yesFrontiers in Marine Science, 2020
Cuttlebone is a hard calcified structure that supports the cuttlefish body and aids in the regulation of buoyancy. The calcification rate of cuttlebone is high and is close to the growth rate of the cuttlefish mantle.
Ming-Tsung Chung   +8 more
doaj   +1 more source

A Migration-Based Cuttlefish Algorithm With Short-Term Memory for Optimization Problems

open access: yesIEEE Access, 2020
Cuttlefish algorithm (CFA) is a metaheuristic bio-inspired algorithm that mimics the color-changing behavior by the cuttlefish. It is produced by light reflected from different layers of cells and involves two processes, i.e., reflection and visibility ...
Muataz Salam Al Daweri   +2 more
doaj   +1 more source

Preparing the perfect cuttlefish meal: complex prey handling by dolphins. [PDF]

open access: yesPLoS ONE, 2009
Dolphins are well known for their complex social and foraging behaviours. Direct underwater observations of wild dolphin feeding behaviour however are rare.
Julian Finn, Tom Tregenza, Mark Norman
doaj   +1 more source

Early Exposure to Water Turbidity Affects Visual Capacities in Cuttlefish (Sepia officinalis)

open access: yesFrontiers in Physiology, 2021
In La Manche (English Channel) the level of turbidity changes, not only seasonally and daily in seawater but also along the coast. As a consequence, vision in marine species is limited when based only on contrast-intensity.
Alice Goerger   +3 more
doaj   +1 more source

Learned valuation during forage decision-making in cuttlefish [PDF]

open access: yesRoyal Society Open Science, 2020
Decision-making, when humans and other animals choose between two options, is not always based on the absolute values of the options but can also depend on their relative values.
Tzu-Hsin Kuo, Chuan-Chin Chiao
doaj   +1 more source

The effect of unexpected rewards on decision making in cuttlefish

open access: yesScientific Reports, 2022
Despite numerous studies demonstrating the cognitive ability of cephalopods, there is currently no study showing an emotion-like behavior in this group of animals.
Tzu-Ting Chung   +3 more
doaj   +1 more source

The brain structure and the neural network features of the diurnal cuttlefish Sepia plangon

open access: yesiScience, 2023
Summary: Cuttlefish are known for their rapid changes of appearance enabling camouflage and con-specific communication for mating or agonistic display. However, interpretation of their sophisticated behaviors and responsible brain areas is based on the ...
Wen-Sung Chung   +3 more
doaj   +1 more source

A preliminary analysis of sleep-like states in the cuttlefish Sepia officinalis. [PDF]

open access: yesPLoS ONE, 2012
Sleep has been observed in several invertebrate species, but its presence in marine invertebrates is relatively unexplored. Rapid-eye-movement (REM) sleep has only been observed in vertebrates.
Marcos G Frank   +4 more
doaj   +1 more source

Environmental risk assessment in a contaminated estuary: an integrated weight of evidence approach as a decision support tool [PDF]

open access: yes, 2017
Environmental risk assessment of complex ecosystems such as estuaries is a challenge, where innovative and integrated approaches are needed. The present work aimed at developing an innovative integrative methodology to evaluate in an impacted estuary ...
Caeiro, Sandra   +9 more
core   +1 more source

The Swimming of Cuttlefish [PDF]

open access: yesNature, 1930
WE are indebted to Prof. Polimanti for directing our attention to his previously published observations on the swimming of cuttlefish. We have not access to the journal in which his work was published, so, unfortunately, have not at the time of writing been able to read it.
F. S. RUSSELL, G. A. STEVEN
openaire   +2 more sources

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