Results 31 to 40 of about 517,110 (260)
Dental Microwear Texture Analysis on Radular Teeth
Advanced Materials Interfaces, EarlyView.3D microwear textures reveal how gastropod radular teeth respond to controlled abrasive contact. Distinct surface signatures distinguish regular abrasion from fracture‐dominated material removal, showing how mineralized coatings, fibrous cores, and substrate properties jointly shape wear and failure in a biological scraping interface.
Wencke Krings +2 more
wiley +1 more source
Description of fossil amber with ant syninclusions
Frontiers in Ecology and EvolutionIntroductionThe close relationships and interactions between multiple species can have important impacts on ecosystems. Fossil amber syninclusions (when multiple organisms are preserved together within the same fossil amber piece) sometimes preserves ...
José de la Fuente +2 more
doaj +1 more source
Advanced Science, EarlyView.The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang +20 more
wiley +1 more source
Insect mimicry of plants dates back to the Permian
Nature Communications, 2016 Many insects mimic plants in order to avoid detection by predators. Here, Garrouste and colleagues describe a katydid fossil that extends the record of leaf mimicry to the Middle Permian, more than 100 million years earlier than previously known fossil ...
Romain Garrouste +6 more
doaj +1 more source
Tracing the evolutionary history of the morpho‐anatomy of baculum in primates
The Anatomical Record, EarlyView.Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani +3 more
wiley +1 more source
Drivers of tail evolution in squamates and their implications for the fossorial origin of snakes
The Anatomical Record, EarlyView.Abstract The axial skeleton serves as the primary structural support in all vertebrates and is subdivided into five distinct regions: cervical, thoracic, lumbar, sacral, and caudal. Relaxation of constraints acting on the terminal end of the axial skeleton has led to remarkable variation in caudal vertebrae number across Squamata.
Olivia Binfield +2 more
wiley +1 more source
Records of the Australian MuseumThe Australian Museum has a large palaeontological collection of Triassic specimens from the Sydney Basin, including many type specimens. This study reviewed every presently described Sydney Basin Hawkesbury Sandstone plant and animal taxon that has ...
Graham McLean
doaj +1 more source
Evidence for social parasitism of early insect societies by Cretaceous rove beetles
Nature Communications, 2016 Social insects are commonly parasitized by beetles that live inside colonies and consume nest resources or even the brood. Here, Yamamotoet al. present fossil evidence that social parasitism by beetles dates back at least 99 million years—contemporaneous
Shûhei Yamamoto +2 more
doaj +1 more source
Insects, 2020 A new fossil genus and species of Keroplatidae (Diptera, Bibionomorpha, Sciaroidea), Adamacrocera adami gen. et sp. nov., from the Upper Cretaceous Burmese amber is described and illustrated.
Jan Ševčík +2 more
doaj +1 more source