Results 141 to 150 of about 155,326 (337)
Spider Eye Development Editing and Silk Fiber Engineering Using CRISPR‐Cas
Spiders exhibit unique traits with significant implications for a diversity of fields, and gene editing provides new opportunities for advancing research in these areas. In this study, we developed a CRISPR‐Cas9 protocol for spiders, enabling gene knock‐outs/knock‐ins to study gene function and introduce new phenotypic traits. Abstract CRISPR‐Cas9 gene
Edgardo Santiago‐Rivera+1 more
wiley +1 more source
A Check-list of the Spiders of Arkansas [PDF]
Collections of spiders were made from 1966, to the present in the six physiographic regions of Arkansas.
Dorris, Peggy Rae
core +2 more sources
The genus Theridionconstruct beautiful silken nests for the protection of their eggs. I have collected what I take to be the nests of three species in Canada. They are generally found under the bank of decayed forest trees. Another which I found on an old fence at Quebec, although not constructed of silk, its form, in my opinion, is sufficient to class
openaire +2 more sources
Catalytic asymmetric 1,3‐dipolar cycloadditions (1,3‐DCA) using iminoesters as ylide precursors offer a powerful approach to accessing stereochemically complex, biologically relevant pyrrolidines. While previous studies have already achieved impressive stereoselectivities, catalytic productivity remains a challenge, with turnover numbers (TON ...
Adrian Bürstner+13 more
wiley +1 more source
On the Spiders of the Suborder Mygalomorphse from the Ethiopian Region contained in the Collection of the British Museum. [PDF]
R.I. Pocock
openalex +1 more source
Registros de arañas epigeas en Bahía Blanca, en la región templada de Argentina [PDF]
Ecological surveys of diversity and seasonal patterns of spiders in relation with cadavers have rarely been conducted, despite the high potential species diversity and abundance of spiders.
Zanetti, Noelia Inés
core
Who was the real sabertooth predator: Thylacosmilus or Thylacoleo?
Abstract Sabertoothed mammalian predators, all now extinct, were almost exclusively feloid carnivorans (Eutheria, Placentalia): here a couple of extinct metatherian predators are considered in comparison with the placental sabertooths. Thylacosmilus (the “marsupial sabertooth”) and Thylacoleo (the “marsupial lion”) were both relatively large (puma ...
Christine M. Janis
wiley +1 more source
Contributions to Our Knowledge of the Anatomy and Relationships of Spiders. [PDF]
Alexander Petrunkevitch
openalex +1 more source
Abstract Megantereon was a widespread saber‐toothed felid from the Pliocene and Pleistocene of the Old World and North America, but its rarity in the fossil record makes it complicated to restore its life appearance. Lack of complete specimens makes it necessary to combine information from fossils of different individuals to reconstruct their facial ...
Mauricio Antón+4 more
wiley +1 more source
Shaping the human face: Periosteal bone modeling across ontogeny
Abstract Facial morphology is a defining aspect of Homo sapiens that distinguishes our species from fossil ancestors and plays a central role in estimating age, sex, and ancestry in both past and present populations. Understanding how the face develops during postnatal ontogeny is essential for interpreting adult facial variation.
Sarah E. Freidline+5 more
wiley +1 more source