Results 91 to 100 of about 117,691 (347)

Sex Reversal in Amphibians [PDF]

open access: yesSexual Development, 2016
Amphibians have been widely used to study developmental biology due to the fact that embryo development takes place independently of the maternal organism and that observations and experimental approaches are easy. Some amphibians like <i>Xenopus</i> became model organisms in this field.
openaire   +4 more sources

Amphibian and reptile road-kills on tertiary roads in relation to landscape structure: using a citizen science approach with open-access land cover data

open access: yesBMC Ecology, 2017
BackgroundAmphibians and reptiles are among the most endangered vertebrate species worldwide. However, little is known how they are affected by road-kills on tertiary roads and whether the surrounding landscape structure can explain road-kill patterns ...
Florian Heigl   +3 more
semanticscholar   +1 more source

China shares fossil treasures with the world

open access: yesThe Anatomical Record, EarlyView.
Abstract China has been a rich source of fossils for nearly a century, beginning with the discovery of so‐called Peking man (Sinanthropus pekinensis), known today as Homo erectus pekinensis in the mid 1920s. The first Chinese dinosaurs were described in 1929, the sauropod Helopus (now Euhelopus) and the ornithopod Tanius, described by the Swedish ...
Peter Dodson
wiley   +1 more source

An overview of the postcranial osteology of caecilians (Gymnophiona, Lissamphibia)

open access: yesThe Anatomical Record, EarlyView.
Abstract Caecilians comprise a relatively small (~220 species) group (Gymnophiona) of snake‐like or worm‐like, mostly tropical amphibians. Most adult caecilians are fossorial, although some species may live in aquatic or semi‐aquatic environments, either as larvae or adults.
Rodolfo Otávio Santos   +2 more
wiley   +1 more source

Why Have a Pet Amphibian? Insights From YouTube

open access: yesFrontiers in Ecology and Evolution, 2019
The desire to own a pet amphibian is growing, and with it a growth in amphibian trade and in negative impacts on native populations, including disease transmission and invasive amphibian populations.
John Measey   +7 more
doaj   +1 more source

Brazilian Biomes as Promising Resources of Rhodotorula Yeasts for the Biotechnological Production of Carotenoids

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT Yeasts belonging to the genus Rhodotorula are capable of synthesizing carotenoids, such as β‐carotene, γ‐carotene, torulene, torularodine, and astaxanthin. These carotenoids have been shown to offer health benefits to humans, such as immune system strengthening and a reduced risk of chronic degenerative diseases.
David Cristian Rodrigues Lucas   +1 more
wiley   +1 more source

Chemically Synthesized LRAD3‐D1 Interacts with N‐terminal Domain of SARS‐CoV‐2 Spike Protein

open access: yesChemBioChem, Accepted Article.
Growing evidence of post‐COVID neurological complications, such as encephalopathy, neurodegeneration, and cognitive impairment, suggests SARS‐CoV‐2 viral infection into the central nervous system (CNS). Therefore, understanding the mechanisms of viral entry into the CNS, where human angiotensin‐converting enzyme 2 is barely expressed, is critical for ...
Mrinmoy Jana   +5 more
wiley   +1 more source

The potential effects of climate change on amphibian distribution, range fragmentation and turnover in China

open access: yesPeerJ, 2016
Many studies predict that climate change will cause species movement and turnover, but few have considered the effect of climate change on range fragmentation for current species and/or populations.
Ren-yan Duan   +4 more
semanticscholar   +1 more source

Wetlands as environments of early human occupation: A new classification for freshwater palaeowetlands

open access: yesThe Depositional Record, EarlyView.
A new classification for inland freshwater palaeowetlands to be used in the field or core laboratory by sedimentologists, providing examples from the Guadix Basin (southern Spain). Abstract Present wetlands have proven to be delicate, biodiverse ecosystems, that are natural sinks for CO2 and act as good indicators for climate changes.
S. Pla‐Pueyo   +1 more
wiley   +1 more source

First record of Plectrohyla guatemalensis Brocchi, 1877 (Anura, Hylidae) from Nicaragua [PDF]

open access: yesCheck List
We con&#64257;rm the presence of the genus Plectrohyla Brocchi, 1877 in Nicaragua and report the &#64257;rst records of Plectrohyla guatemalensis Brocchi, 1877 in the country based on three specimens collected in 1983 from the central mountain ...
Celsa Señaris, Javier Sunyer
doaj   +3 more sources

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