Results 31 to 40 of about 1,443 (177)
Palaeontology, Volume 64, Issue 6, Page 805-815, November 2021., 2021 Abstract Marine deposits of earliest Eocene age in northern Jutland, Denmark, are renowned for yielding diverse teleost assemblages that have proved central for enhancing our understanding of the early evolution of many extant actinopterygian clades. In this study, we investigate diminutive larval fish fossils from the Stolleklint Clay, Ølst Formation,
Miriam Heingård +5 more
wiley +1 more source
Recent advances in heteromorph ammonoid palaeobiology
Biological Reviews, Volume 96, Issue 2, Page 576-610, April 2021., 2021 ABSTRACT Heteromorphs are ammonoids forming a conch with detached whorls (open coiling) or non‐planispiral coiling. Such aberrant forms appeared convergently four times within this extinct group of cephalopods. Since Wiedmann's seminal paper in this journal, the palaeobiology of heteromorphs has advanced substantially.
René Hoffmann +9 more
wiley +1 more source
How Egg Case Proteins Can Protect Cuttlefish Offspring? [PDF]
PLoS ONE, 2015 Sepia officinalis egg protection is ensured by a complex capsule produced by the female accessory genital glands and the ink bag. Our study is focused on the proteins constituting the main egg case.
Valérie Cornet +7 more
doaj +1 more source
Melanins as Sustainable Resources for Advanced Biotechnological Applications
Global Challenges, Volume 5, Issue 2, February 2021., 2021 Melanin‐based materials have broad applicability in materials science and engineering for medical and technical applications. This review offers an overview of the techniques used to analyze their chemical, electrical, optical, and paramagnetic properties with a view to their use as sustainable resources for advanced biotechnological applications that ...
Hanaa A. Galeb +8 more
wiley +1 more source
Elucidation of the hierarchical structure of natural eumelanins [PDF]
, 2018 Eumelanin is one of the most ubiquitous pigments in living organisms and plays an important role in coloration and UV protection. Because eumelanin is highly cross-linked and insoluble in solvents, the chemical structure is still not completely known. In
Chen, Wei +8 more
core +2 more sources
Fluorescent quantification of melanin [PDF]
, 2016 Melanin quantification is reportedly performed by absorption spectroscopy, commonly at 405 nm. Here, we propose the implementation of fluorescence spectroscopy for melanin assessment.
Baek +11 more
core +1 more source
Preparing the perfect cuttlefish meal: complex prey handling by dolphins. [PDF]
PLoS 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
Pharmacoinformation analysis of the molecules of the drug Klimaktoplan
Фармакокинетика и Фармакодинамика, 2018 An analysis of an array of publications on naturaL extracts of tsimitsifuga, sepia, sanguinaria included in the preparation KLimaktoplan, showed that only the extracts of tsimitsifugi have more than 800 studies.
I. Yu. Torshin +2 more
doaj +1 more source
Ritualized ink use during visual courtship display by males of the sexually dimorphic cuttlefish Sepia andreana. [PDF]
Ecol EvolCephalopods may release ink when attacked by predators, but we have discovered that ink is used as a part of the courtship display by males of the cuttlefish species Sepia andreana. Males of this species engage in a highly ritualized multi‐modal courtship using a pair of markedly long sexually dimorphic arms, and at the climax of the courtship, the ...
Nakayama A +4 more
europepmc +2 more sources