Buscar recursos académicos

The Bryn Gwyn (Chubut Province, Patagonia, Argentina) is a classic fossiliferous site, long recognised for its Cenozoic vertebrate record. However, its invertebrate content remains poorly documented. The Lower Miocene Ga...

Over more than six decades of dedicated research, Chang Meemann’s career has spanned a critical era marked by a paradigm shift in vertebrate evolution studies. Beginning in the 1950s, inspired by the pioneering ichthyo...

Deficiency of adenosine deaminase 2 (DADA2) was identified in 2014 as a novel inborn error of immunity caused by biallelic pathogenic variants in ADA2. DADA2 patients express two predominant clinical phenotypes: (1) auto...

New findings of early vertebrates, including placoderms, sarcopterygians, and the galeaspids Sanqiaspis rostrata, Macrothyraspis longicornis, Gantarostraspis gengi, Wenshanaspis sp., are described from Posongchong Format...

Bile acids in fish, as in other vertebrates, represent a complex metabolic system the composition of which depends on species, age, diet, and environmental conditions. Their ratio is closely associated with enterohepatic...

Abstract The ability of organisms to learn and remember is crucial for their survival. This cognitive ability spans a wide range of organisms, including both vertebrates and invertebrates, yet has remained little studied...

Abstract Objective The study aimed to evaluate the hypoxia-induced brain injury and neuroprotective effects of pyrimidine and its derivative, arylvinylpyrimidine (AVP), in the freshwater catfish, Heteropneustes fossilis....

Convergent extension (CE) is a fundamental morphogenetic process where oriented cell behaviors lead to polarized extension of diverse tissues. In vertebrates, regulation of CE requires both non-canonical Wnt, its co-rece...

Mantises predominantly prey on invertebrates but occasionally also on small vertebrates. We describe the distributions of the three Polyspilota species (Mantodea: Mantidae) that occur in South Africa, based on 466 specim...

Abstract The ability to assess and utilise the length of the daily light period has been identified as a key component of the physiological ecology regulating metabolism and reproduction across various vertebrate taxa. W...

Abstract Background Animals rely on symbiotic bacteria living within/on their tissues for multiple functions, while simultaneously needing to protect themselves via immune functions or other defenses from potentially pat...

The bodies of animals host millions of microbial communities collectively known as the microbiome. The microbiome plays a crucial role in various processes related to the host’s health and well-being. Although our unde...

Abstract Vertebrate chemoreceptor genes play a central role in detecting environmental chemical compounds through the olfactory organs and taste buds, enabling the perception of odors and tastants that are critical for s...