Variations of larval ommatidia in four species of Bittacidae (Insecta: Mecoptera) [0.03%]
缨翅目铁线莲科四种虫的若虫眼小眼节的变化规律
Wan-Ruo Ma,Jia-Li Bai,Bao-Zhen Hua
Wan-Ruo Ma
The larvae of Bittacidae normally bear a pair of compound eyes on the lateral sides of the head. The compound eyes each are reported to consist of seven ommatidia. However, whether the eyes have variations in number among species and indivi...
Joscha A Alt,Reinhard Lakes-Harlan
Joscha A Alt
Mechanosensation is a universal sensory modality and respective receptors in insects are located in all body parts. For perception of substrate vibrations, highly specialized sensory organs have evolved. In insects, the legs contain special...
Morphology of the circulatory system in Caobangia billeti Giard, 1893 (Annelida, Sabellidae) [0.03%]
Caobangia billeti Giard, 1893（ANNELIDA SABELLIDAE）的循环系统解剖学结构研究
Varvara I Krolenko,Glafira D Kolbasova,Alexander B Tzetlin
Varvara I Krolenko
Caobangia billeti is an aberrant shell-burrowing annelid with a phoronid-like body plan and U-shaped digestive tract, an anterior anus on the dorsal side near the head, and reduced metamerism. The segmental dissepiments in C. billeti are ab...
Embryonic behavior and skeletogenesis in developing skate Okamejei kenojei [0.03%]
鼠状拟蠵鲨胚胎行为和骨发生发育研究
Guang Gao,Bingxin Guan,Guangbin Shao et al.
Guang Gao et al.
Cartilaginous fishes (sharks, skates and chimaeras) exhibit diverse behavioral patterns and unique endoskeleton, which provide insights into their ecological adaptations and evolution. However, research on the development of cartilaginous f...
Thermal energetics of bats of the family Vespertilionidae: An evolutionary approach [0.03%]
伏翼科蝙蝠的热能动力学：一种进化论观点
Jorge Ayala-Berdon,Kevin I Medina-Bello,Jorge D Carballo-Morales et al.
Jorge Ayala-Berdon et al.
Thermal energetics define the way animals spend energy for thermoregulation. In this regard, numerous studies have determined that body mass (Mb) is the most influential morphological trait affecting the thermal traits in different species ...
Back to the water II: Variation in eye and cranial morphology in Telmatobius frogs with different lifestyles [0.03%]
重返水中II：不同类型生活方式的Telmatobius蟾蜍的眼和颅形态变异
J Sebastián Barrionuevo
J Sebastián Barrionuevo
Several tetrapod lineages have independently evolved an aquatic lifestyle, driving structural and functional modifications. Changes in eye size and position are key trends in this transition. While most frogs and toads have aquatic larvae, ...
Cytogenetic insights into Sosippinae (Araneae, Lycosidae) reveal pronounced diploid number reduction in Aglaoctenus and elevated number of rDNA loci in two unrelated species [0.03%]
Sosippinae（蜘蛛目：狼蛛科）的细胞遗传学见解揭示了Aglaoctenus中二倍体数量的显著减少以及两种无关物种中rDNA位点的数量增加
Mariana Bessa Sanches,Lucas Henrique Bonfim Souza,Bruno Cansanção Silva et al.
Mariana Bessa Sanches et al.
Spiders represent a fascinating group for studying chromosomal evolution due to their dynamic karyotypes, which reveal significant differences even between closely related taxa. Lycosidae, one of the most species-rich families of spiders, h...
Impacts of competition on juveniles of two sympatric freshwater prawn species from Pampean ecosystems: Palaemon argentinus and Macrobrachium borellii [0.03%]
两种同域分布的南美湿地虾类稚虾的竞争关系：淡水扇虾和宽步角淡扇虾
María Eugenia Scardamaglia,Karine Delevati Colpo
María Eugenia Scardamaglia
Competition is an interaction between individuals, either of the same species (intraspecific) or different species (interspecific), involving the contest for limited resources. This interaction can influence individual growth, reproduction,...
To the roots: reconstruction of the ancestral state of the dorid feeding apparatus [0.03%]
追溯根本：腹足类喂食器官的祖先状态重建
Anna L Mikhlina,Irina A Ekimova,Dimitry M Schepetov et al.
Anna L Mikhlina et al.
Diet-driven ecological radiation has been proposed as a key factor in the diversification of Nudibranchia. Members of Doridina, one of the two major clades of nudibranchs, have a remarkably wide range of dietary preferences. The morphology ...
Maternal and social status affect hair cortisol concentrations in brown bears [0.03%]
母体和社会地位影响棕熊的毛发皮质醇浓度
Marcello Franchini,Ashlee J Mikkelsen,Agnieszka Sergiel et al.
Marcello Franchini et al.
Hair cortisol concentration is affected by different biological factors, including age, sex, and reproductive status, and can provide important insights into fitness. Using cortisol concentrations of wild Scandinavian brown bears, Ursus arc...