Results 11 to 20 of about 722 (144)

Evolution of the Cdk4/6-Cdkn2 system in invertebrates. [PDF]

Genes Cells
Hypothesis on the evolution of the Cdkn2 locus. (a) Loss of Cdkn2 occurred multiple times. (b) Evolution of microsynteny at the Cdkn2 locus. Cdkn2e is a hypothetical transient gene. Abstract The cell cycle is driven by cyclin‐dependent kinases (Cdks). The decision whether the cell cycle proceeds is made during G1 phase, when Cdk4/6 functions.
Yuki S, Sasaki S, Yamamoto Y, Murakami F, Sakata K, Araki I.   +5 more
europepmc   +2 more sources

Cautionary tales on the use of proxies to estimate body size and form of extinct animals. [PDF]

Ecol Evol
Reconstructing the body size and form of extinct animals is of vital importance to our understanding of macroevolution and palaeontology. This is often done using anatomical proxies where extinct species are known only from fragmentary remains. However, there are many limitations influencing the selection of proxy taxa that are frequently overlooked ...
Gayford JH, Engelman RK, Sternes PC, Itano WM, Bazzi M, Collareta A, Salas-Gismondi R, Shimada K.   +7 more
europepmc   +2 more sources

Assessing the quality of octopus: From sea to table

Food Frontiers, Volume 4, Issue 2, Page 733-749, June 2023., 2023
1. This review was to provide a practical overview of the nomenclature, procurement (i.e., catching), processing, quality, and shelf‐life of octopus. 2. Octopus‐derived food products have a high protein content (70‐85% on a dry matter basis), significant levels of important major and trace minerals, and significant levels of essential vitamins.
Sol Zamuz, Benjamin M. Bohrer, Mohammad Ali Shariati, Maksim Rebezov, Manoj Kumar, Mirian Pateiro, José M. Lorenzo   +6 more
wiley   +1 more source

Seals, whales and the Cenozoic decline of nautiloid cephalopods

Journal of Biogeography, Volume 49, Issue 11, Page 1903-1910, November 2022., 2022
Abstract Aim Nautilus and Allonautilus, last members of the once widespread nautiloid cephalopods, are today restricted to the deep central Indo‐West Pacific Ocean, for reasons that remain unclear. Cephalopod evolution is generally considered as being driven by vertebrate predation; therefore, we investigated the role of whales and seals in the decline
Steffen Kiel, James L. Goedert, Cheng‐Hsiu Tsai   +2 more
wiley   +1 more source

Every hooked beak is maintained by a prey: Ecological signal in cephalopod beak shape

Functional Ecology, Volume 36, Issue 8, Page 2015-2028, August 2022., 2022
Read the free Plain Language Summary for this article on the Journal blog. Abstract Beaks are among the few hard parts of coleoid cephalopods and are informative for species identification. Although mandible shape has been shown to be adaptive in many vertebrate taxa, it has been suggested that the shape of coleoid beaks does not bear any ecological ...
Marjorie Roscian, Anthony Herrel, Paul Zaharias, Raphaël Cornette, Vincent Fernandez, Isabelle Kruta, Yves Cherel, Isabelle Rouget   +7 more
wiley   +1 more source

A revisited phylogeography of Nautilus pompilius. [PDF]

Ecol Evol, 2016
Map of the Indo‐Pacific showing sampling locations of Nautilus for this study and photographs of representative animals from each location. There appears to be interesting phenotypic plasticity displayed between different populations of Nautilus pompilius in traits such as size, shell coloration, and hood morphology. Our data suggest that Nautilus from
Vandepas LE, Dooley FD, Barord GJ, Swalla BJ, Ward PD.   +4 more
europepmc   +2 more sources

Systematic review of brazilian Nautiloidea cephalopods

Paleontología Mexicana, 2019
This work deals with the systematic study of the nautiloid cephalopods from Brazil recorded in Manacapuru, Ponta Grossa, Maria Farinha and Pirabas formations (Silurian-Devonian, Devonian, Paleocene and Lower Miocene, respectively) at Pará, Paraná and Pernambuco states. Herein are presented the Paleozoic species Michelinoceras cf. M. telamon (Hall, 1879)
Vladimir De Araújo Tavora, Débora Barroso Monteiro, Iolanda Clara do Carmo Gomes   +2 more
openaire   +1 more source

A biphasic memory curve in the chambered nautilus,Nautilus pompiliusL. (Cephalopoda: Nautiloidea) [PDF]

Journal of Experimental Biology, 2008
SUMMARYCephalopods are an exceptional taxon for examining the competing influences of ecology and evolutionary history on brain and behaviour. Coleoid cephalopods (octopuses, cuttlefishes and squids) have evolved specialised brains containing dedicated learning and memory centres, and rely on plastic behaviours to hunt prey effectively and communicate ...
Robyn, Crook, Jennifer, Basil
openaire   +2 more sources

Magyarországi harmadidőszaki cephalopodák szisztematikai feldolgozása és paleobiogeográfiai - paleoökológiai kiértékelése = Systematics and paleobiogeographical-paleoecological evaluation of Tertiary cephalopods from Hungary [PDF]

, 2008
A magyarországi harmadidőszaki Cephalopodák vizsgálata hasznos és eredményes volt. Számos olyan helyről sikerült fejlábú maradványokat megismerni, ahonnan korábban ezek nem voltak ismertek.
Galácz, András
core  

Growth Efficiency and Carbon Balance for the Sponge Haliclona oculata [PDF]

, 2009
To obtain more knowledge about carbon requirements for growth by sponges, the growth rate, respiration rate, and clearance rate was measured in situ in Haliclona oculata. We found that only 34% of the particulate carbon pumped through the sponge was used
Marieke Koopmans, Dirk Martens, Rene H. Wijffels   +2 more
core   +2 more sources