The genus Craspedoglossa is considered a synonym of Cycloramphus. Image credit: Zachary S. Randall (Florida Museum of Natural History, Gainesville, FL).Models to predict six life outcomes based on data collected over 15 years suggest that the use of predictive models in criminal and social systems may need to be reevaluated, along with the assumption that life trajectories can be predicted.A study assesses the reliability of a forensic identification technique that matches purportedly distinct patterns of wear and tear on denim jeans.Image credit: Sophie J. Nightingale and Hany Farid.How we are shaped: The biomechanics of gastrulationConvergent extension: The molecular control of polarized cell movement during embryonic developmentPrinciples of planar polarity in animal developmentIntegration of planar cell polarity and ECM signaling in elongation of the vertebrate body planDishevelled: Linking convergent extension with neural tube closureThe expression of Brachyury (T) during gastrulation in the marsupial frog Expression of Brachyury during development of the dendrobatid frog Comparison of Lim1 expression in embryos of frogs with different modes of reproductionEmbryogenesis and laboratory maintenance of the foam-nesting túngara frogs, genus Neural crest migration: Interplay between chemorepellents, chemoattractants, contact inhibition, epithelial-mesenchymal transition, and collective cell migrationComparative patterns of craniofacial development in eutherian and metatherian mammalsReproductive biology of anurans of the arid South-West, with emphasis on adaptation of embryos to temperatureOssification heterochrony in the therian postcranial skeleton and the marsupial-placental dichotomyEarly cranial neural crest migration in the direct-developing frog, Early embryogenesis in discoglossoid frogs: a study of heterochrony at different taxonomic levelsHeterochronic shifts during early cranial neural crest cell migration in two ranid frogsVertebrate evolution: The developmental origins of adult variationDo timing and pattern of myogenesis correlate with life history mode in anurans?Frogs without polliwogs: Evolution of anuran direct developmentDevelopment in frogs with large eggs and the origin of amniotesVariation, plasticity and modularity in anuran developmentRearranging gastrulation in the name of yolk: Evolution of gastrulation in yolk-rich amniote eggsPhylogenetic analyses reveal unexpected patterns in the evolution of reproductive modes in frogsLoss and re-evolution of complex life cycles in marsupial frogs: Does ancestral trait reconstruction mislead?Phylogenetic evidence for a major reversal of life-history evolution in plethodontid salamandersRegional requirements for Dishevelled signaling during were 80, 80 and 60%, respectively (The mean proportion of heterozygous loci per individuals for all populations
Big frogs also have longer tongues than little frogs. Online ISSN 1091-6490Enter multiple addresses on separate lines or separate them with commas.This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.Researchers need safe return-to-work programs coupled with an infusion of stimulus funds and appropriate testing.Image credit: Wikimedia Commons/National Institutes of Health.Watercourts were used to store live surplus fish in ancient Florida, a study suggests. C.M. designed research; N.S.-P., C.M., and E.M.d.P. (Rapid embryonic development has been demonstrated in species from several anuran groups, such as the Pipidae, Scaphiopodidae, and Leiuperidae (This study demonstrates that rapidly developing frog species elongate the notochord early relative to the time point of blastopore closure, and it also shows acceleration in the development of cranial neural crest cell-streams relative to somite formation in comparison with slowly developing species (Large egg size also occurs in the slowly developing frogs analyzed in this work, whereas the rapidly developing species have smaller eggs (There are differences in the timing of head and trunk organizer development among frogs. studies (Allelic frequencies were calculated directly from observed genotypes. performed research; N.S.-P. and E.M.d.P. In fact, the prechordal plate (head organizer) appears during gastrulation in the slowly developing embryos of The timing of neural tube closure seemed to be temporally uncoupled with the formation of somites in the analyzed frogs (Acceleration of body elongation, detected by the early onset of notochord, and of head development, indicated by the acceleration of cranial neural crest cell-stream development in relation to somite formation, may be connected with the accelerated development of the tadpole in the rapidly developing biphasic species.