Results 101 to 110 of about 143,816 (390)

Locating Traces of Arboreal Beings: Connecting the Tree and the Woodblock

open access: yesArchaeology in Oceania, EarlyView.
ABSTRACT Woodblocks for printmaking are multi‐perspectival communicators inscribed with layered narratives. The artistic process of cutting excavates the surface of a woodblock, making visible lesser‐seen traces of the past, reflective of the practice of archaeology.
Julian Laffan
wiley   +1 more source

Common lizards break Dollo’s law of irreversibility: genome-wide phylogenomics support a single origin of viviparity and re-evolution of oviparity [PDF]

open access: yes, 2018
Dollo’s law of irreversibility states that once a complex trait has been lost in evolution, it cannot be regained. It is thought that complex epistatic interactions and developmental constraints impede the re-emergence of such a trait.
Elmer, Kathryn R.   +2 more
core   +1 more source

Reduced Adult Neurogenesis in Humans Results From a Tradeoff Rather Than Direct Negative Selection

open access: yesBioEssays, EarlyView.
Embryonic radial glia (RG) generate neurons, glial cells, and later adult neural stem cells, which sustain adult neurogenesis (top, left to right). Human‐specific genetic modifications (blue arrow), selected to boost early RG neurogenic activity, may lead to premature RG exhaustion and reduced adult neurogenesis in the human brain (bottom).
David Morizet, Laure Bally‐Cuif
wiley   +1 more source

Squamate ventricular cardiomyocytes: Ploidy, proliferation, and heart muscle cell size in the leopard gecko (Eublepharis macularius)

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background While heart function is broadly conserved across vertebrates, the cellular phenotype of muscle cells (cardiomyocytes) varies across taxa and throughout ontogeny. Emerging evidence suggests that some attributes may correlate with the capacity for spontaneous cardiomyocyte replacement following injury.
Kathy Jacyniak   +4 more
wiley   +1 more source

Antipredator mechanisms displayed by Gymnodactylus darwinii (Squamata: Phyllodactylidae) and Chatogekko amazonicus (Squamata: Sphaerodactylidae) when handled in fieldworks

open access: yesRevista de Biologia Neotropical, 2022
Brazil is one of the richest countries in reptile fauna. However, the antipredator mechanisms regarding many of these species are not yet known. As we document new records, it may continually improve our understanding on predator-prey interactions. Here,
Bruno Becacici Loureiro   +3 more
doaj  

Petrosaurus [PDF]

open access: yes, 1990
Number of Pages: 2Integrative BiologyGeological ...
Jennings, Mark R.
core   +1 more source

Too dry for lizards: short‐term rainfall influence on lizard microhabitat use in an experimental rainfall manipulation within a piñon‐juniper

open access: yes, 2016
Summary 1.Ectotherms such as lizards are expected to alter their behavior and microhabitat use and experience population declines in response to rising temperatures.
M. J. Ryan   +8 more
semanticscholar   +1 more source

Pre‐oviposition development of the brown anole (Anolis sagrei)

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The brown anole, Anolis sagrei, has emerged as a representative squamate species for developmental studies during the past decades. Novel functional tools have been established to manipulate embryogenesis through genome editing or the introduction of small molecule inhibitors, and their effective use requires a thorough ...
Antonia Weberling   +9 more
wiley   +1 more source

Temperature acclimation affects thermal preference and tolerance in three Eremias lizards (Lacertidae)

open access: yesCurrent Zoology, 2009
We acclimated adult males of three Eremias lizards from different latitudes to 28 °C, 33 °C or 38 °C to examine whether temperature acclimation affects their thermal preference and tolerance and whether thermal preference and tolerance of these lizards ...
Hong LI, Zheng WANG, Wen-Bin MEI, Xiang JI
doaj  

Thecadactylus, T. rapicauda [PDF]

open access: yes, 2002
Number of Pages: 16Integrative BiologyGeological ...
Bauer, Aaron M., Russell, Anthony P.
core   +1 more source

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