Results 41 to 50 of about 1,760 (187)

Antimicrobial peptides in frog poisons constitute a molecular toxin delivery system against predators [PDF]

open access: yes, 2017
Animals using toxic peptides and proteins for predation or defense typically depend on specialized morphological structures, like fangs, spines, or a stinger, for effective intoxication.
Ballet, Steven   +12 more
core   +1 more source

Biomonitoring of the genotoxic potential (micronucleus assay) and detoxifying activity (EROD induction) in the River Dadou (France), using the amphibian Xenopus laevis [PDF]

open access: yes, 2004
Within the framework of a general survey of the water quality of the river Dadou (Tarn, France), different physicochemical parameters were measured and an inventory of the fish population was made along the water course, around the Rassisse dam.With the ...
Gauthier, Laury   +3 more
core   +2 more sources

A simplified table for staging embryos of the pipid frog Pipa arrabali

open access: yesAnais da Academia Brasileira de Ciências
Pipa is a Neotropical genus of frogs that dwell in freshwater environments. It includes four species that lack free-swimming larvae (P. aspera, P. arrabali, P. pipa, and P. snethlageae) and three with tadpoles (P. carvalhoi, P. myersi, and P.
OLÍVIA G.S. ARAÚJO   +3 more
doaj   +1 more source

Reversal to air-driven sound production revealed by a molecular phylogeny of tongueless frogs, family Pipidae

open access: yesBMC Evolutionary Biology, 2011
Background Evolutionary novelties often appear by conferring completely new functions to pre-existing structures or by innovating the mechanism through which a particular function is performed.
Glaw Frank   +4 more
doaj   +1 more source

Chromosome Banding in Amphibia. XXXII. The Genus Xenopus (Anura, Pipidae) [PDF]

open access: yesCytogenetic and Genome Research, 2015
Mitotic chromosomes of 16 species of the frog genus <i>Xenopus</i> were prepared from kidney and lung cell cultures. In the chromosomes of 7 species, high-resolution replication banding patterns could be induced by treating the cultures with 5-bromodeoxyuridine (BrdU) and deoxythymidine (dT) in succession, and in 6 of these species the BrdU/
Schmid, Michael, Steinlein, Claus
openaire   +3 more sources

Leptodactylus labialis [PDF]

open access: yes, 1971
Number of Pages: 3Integrative BiologyGeological ...
Heyer, W. Ronald
core   +1 more source

Dual processing of sulfated steroids in the olfactory system of an anuran amphibian

open access: yesFrontiers in Cellular Neuroscience, 2015
Chemical communication is widespread in amphibians, but if compared to later diverging tetrapods the available functional data is limited. The existing information on the vomeronasal system of anurans is particularly sparse.
Alfredo eSansone   +8 more
doaj   +1 more source

Cartilage on the Move: Cartilage Lineage Tracing During Tadpole Metamorphosis

open access: yes, 2012
The reorganization of cranial cartilages during tadpole metamorphosis is a set of complex processes. The fates of larval cartilage-forming cells (chondrocytes) and sources of adult chondrocytes are largely unknown.
Brittain, Alison L.   +3 more
core   +1 more source

Illegal trade on non-native amphibians and reptiles in southeast Brazil: the status of e-commerce [PDF]

open access: yes, 2012
Illegal trade on non-native amphibians and reptiles in southeast Brazil: the status of e ...
André Lincoln Barroso de Magalhães   +1 more
core   +2 more sources

African fossil Lissamphibia [PDF]

open access: yes, 1995
Main articleThe Anura (Frogs and Toads) are represented in Africa and associated regions by fossils of every epoch from the Cretaceous to the Holocene.
van Dijk, D. E.
core  

Home - About - Disclaimer - Privacy