Thomas Stach
Thomas Stach
The Dermal Skeleton of Stem-Actinopterygian Moythomasia durgaringa and Its Implications for the Nature of the Ancestral Osteichthyan [0.03%]
全骨鱼祖先型肉骨鱼类莫伊托马斯鱼的真皮骨骼及其意义
Xianren Shan,Edine Pape,Joseph N Keating et al.
Xianren Shan et al.
The dermal skeleton is the most primitive component of the vertebrate mineralized skeleton, and features of its structure and development are key to resolving the evolutionary relationships of early vertebrates and bony fishes. In particula...
Effects of Increased Distal Limb Mass on Stability During Arboreal Locomotion in the Laboratory Rat (Rattus norvegicus) [0.03%]
后肢负重对实验室大鼠(Rattus norvegicus)树木栖息和运动稳定性的影响
Andrew R Lammers,Grace L Schepelmann,Olivia Safady et al.
Andrew R Lammers et al.
Traveling on arboreal substrates requires behavioral and morphological adaptations to reduce the likelihood of falls. Many arboreal specialists have greater distal limb mass compared with closely related terrestrial taxa. In this study, we ...
Gonadal Development in Larvae of the Paedomorphic Ambystoma mexicanum (Amphibia: Urodela) [0.03%]
墨西哥轴突鱼（两栖动物：有尾目）幼虫的生殖腺发育
Jessica Lucía Sánchez-Ortiz,Eva Mendoza-Cruz,Maricela Villagrán-SantaCruz
Jessica Lucía Sánchez-Ortiz
The axolotl (Ambystoma mexicanum) is an endemic amphibian of the order Urodela, which has the ability to reproduce while retaining its larval characteristics. The primary objective of this study was to outline the stages of gonadal developm...
Osteology of the Feeding Apparatus of Chilean Flamingo Phoenicopterus chilensis (Aves: Phoenicopteridae) [0.03%]
智利火烈鸟取食器官的骨学研究（Phoenicopteridae：P．chilensis）
Oscar Aldana Ardila,Caio J Carlos
Oscar Aldana Ardila
Flamingos (Phoenicopteridae) feed using a uniquely adapted bill that extracts small particles from the water and sediments. This study provides a detailed osteological description of the skull of the Chilean Flamingo (Phoenicopterus chilens...
Testicular Morphology and Spermatogenesis in Potamotrygon motoro: Insights Into Reproduction of Freshwater Stingrays [0.03%]
Potamotrygon motoro河豚的睾丸形态和精子发生：关于淡水河豚繁殖的新见解
Maria Luiza Ribeiro Delgado,Patricia Postingel Quirino,Luciane Gomes-Silva et al.
Maria Luiza Ribeiro Delgado et al.
This study investigated the spermatogenesis of the freshwater stingray Potamotrygon motoro using microscopic analyses. The testes of this species were described as being composed of germinal zones, a degenerated zone, and the epigonal organ...
Functional Morphology of the Archosaur Neck Provides Evolutionary Insights Into the Avian Neck Flexibility [0.03%]
主龙类颈部的功能解剖为鸟类颈部灵活性的演化提供新见解
Yohei Utsuki,Yoshitsugu Kobayashi
Yohei Utsuki
The amniote neck has evolved extensive mobility and this has contributed to functional and ecological diversification across the clade. Among amniotes, extant birds exhibit an S-shaped neck with multiple flexion points and displays signific...
Morphological Adaptations for Shell Anchoring in Calcinus tibicen: Insights From µCT Imaging, Histology and Scanning Electron Microscopy [0.03%]
Calcinus tibicen寄居蟹壳内的锚定结构及功能的微米层析成像、组织切片和扫描电镜分析
Alexandre R da Silva,Carolina Siqueira Safra Terra Melo,Giselle Pinto de Faria Lopes et al.
Alexandre R da Silva et al.
Hermit crabs rely on external shells for protection due to their non-calcified pleons. This study focuses on the anatomical features and functional roles of various appendages in Calcinus tibicen to understand their mechanisms for shell anc...
Ecological Inference From Isolated Vertebrae: Evaluating Functional Signal Across the Carnivoran Spine [0.03%]
基于孤立椎骨的生态推断：评估食肉动物脊柱的功能信号
Julia A Schwab,Borja Figueirido,Katrina E Jones
Julia A Schwab
Understanding the ecological adaptations of extinct species is a central goal in vertebrate palaeontology, but is often limited by the incomplete nature of the fossil record. While skulls and limb bones have traditionally been emphasised in...
Roles of Femoral Biarticular and Monoarticular Muscles in Cat Walking: A Comparative Review With Dogs, Horses, and Humans [0.03%]
猫行走时股二头肌和股直肌的作用：与狗、马和人的比较综述
Tsutomu Miyake,Hiroshi Koie,Kanto Nishikawa et al.
Tsutomu Miyake et al.
This review applied the two-joint link model to review the functional roles of femoral biarticular, monoarticular and lower leg muscles during walking in domestic cats, with comparative insights from dogs, horses and humans. Electromyograph...