Results 61 to 70 of about 3,126 (190)
Cuticular microfragments from the lower Cambrian Yanjiahe Formation, China: insights into ecdysozoan biodiversity at the dawn of animal radiation [PDF]
Journal of MicropalaeontologyEcdysozoa (molting animals) represent one of the most diverse and ecologically successful animal groups in both extant and fossil ecosystems. This study presents new microfossil cuticular evidence from the lower Cambrian (∼535 Ma) Yanjiahe Formation ...
L. Zhang +21 more
doaj +1 more source
Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 344, Issue 8, Page 505-516, December 2025.Epithelia are typically ciliated, except in sponges. Of all Porifera only Homoscleromorphs have motile cilia on their epithelia. Our data highlight the presence of cilia and mucociliary particle transport as a common feature of metazoa and a secondary loss in other sponge lineages.
Veronica L. Price +9 more
wiley +1 more source
The Resilience of Life to Astrophysical Events
Scientific Reports, 2017 Much attention has been given in the literature to the effects of astrophysical events on human and land-based life. However, little has been discussed on the resilience of life itself.
David Sloan +2 more
doaj +1 more source
Frontiers in Neuroanatomy, 2014 As one of the closest relatives of arthropods, Onychophora plays an important role in understanding the evolution of arthropod body plans. Currently there is controversy surrounding the evolution of the brain among the ecdysozoan clades, which shows a ...
Christine eMartin, Georg eMayer
doaj +1 more source
The FASEB Journal, Volume 39, Issue 17, 15 September 2025.Heparanase 1 (HPSE1) and Heparanase 2 (HPSE2) exhibit opposing expression patterns and functions in pathological contexts, such as cancer. Here, we describe their specific expression in immune cells and their implications in skin diseases. Although they are structurally similar and considered to be ‘cousins’, we found no common ancestor and that HPSE2 ...
Elham Vahdatahar +12 more
wiley +1 more source
EvoDevo, 2016 Background Kinorhynchs are ecdysozoan animals with a phylogenetic position close to priapulids and loriciferans. To understand the nature of segmentation within Kinorhyncha and to infer a probable ancestry of segmentation within the last common ancestor ...
Andreas Altenburger
doaj +1 more source
Aging Cell, Volume 24, Issue 8, August 2025.Metformin and dietary restriction modulate m6A to extend lifespan of rotifer, highlighting MTR as a central regulator of aging through methionine metabolism. ABSTRACT Metformin, a medication primarily used to treat diabetes, has gained attentions for its potential antiaging properties.
Yu Zhang +8 more
wiley +1 more source
Frontiers in Behavioral Neuroscience, 2010 Animals frequently switch from one behavior to another, often to meet the demands of their changing environment or internal state. What factors control these behavioral switches and the selection of what to do or what not to do? To address these issues,
Karen A Mesce +1 more
doaj +1 more source
Molecular Characterization and Functional Analysis of a Putative Octopamine/Tyramine Receptor during the Developmental Stages of the Pacific Oyster, Crassostrea gigas. [PDF]
PLoS ONE, 2016 Octopamine (OA) and its precursor, tyramine (TA), participate in invertebrate development such as growth, maturation, and reproduction by activating their corresponding G protein-coupled receptors (GPCRs).
Peng Ji +5 more
doaj +1 more source
Cladistics, Volume 41, Issue 3, Page 283-303, June 2025.Abstract Using a new character matrix composed of revised matrices of previous analyses and new morphological findings, the phylogeny of Malacostraca (Pancrustacea) is analysed anew with 207 characters for 35 terminal taxa across all recognized orders. Particular emphasis was placed on methodological versatility, including different degrees of implied ...
Markus Grams +3 more
wiley +1 more source