About 96% of the more than 4,800 living anuran species belong to the Neobatrachia or
advanced frogs,,. Because of the extremely poor representation of these animals in the …

Abstract WITH nearly 4,000 living species1, frogs are numerically the most successful of
modern amphibian groups. Their distinctive anatomy, which exhibits numerous unique …

Madagascar has a diverse but mainly endemic frog fauna, the biogeographic history of
which has generated intense debate, fueled by recent molecular phylogenetic analyses and …

Dramatic population declines have affected frogs worldwide (1), and, although new species
continue to be described (2), the discovery of large new species radiations is rare. Here, we …

The origin of extant amphibians (Lissamphibia: frogs, salamanders and caecilians) is one of
the most controversial questions in vertebrate evolution, owing to large morphological and …

The origin of Australopithecus, the genus widely interpreted as ancestral to Homo, is a
central problem in human evolutionary studies. Australopithecus species differ markedly …

Abstract Arising from: JGM Thewissen, LN Cooper, MT Clementz, S. Bajpai & BN Tiwari
Nature450, 1190–1194 (2007) 10.1038/nature06343; Thewissen et al. reply Thewissen et …

Here we report the discovery of a small-bodied (∼ 1.8 m) predatory dinosaur from the Late
Cretaceous (Maastrichtian) of Madagascar. Masiakasaurus knopfleri, gen. et sp. nov …

Dinosaurs and pterosaurs have remarkable diversity and disparity through most of the
Mesozoic Era,–. Soon after their origins, these reptiles diversified into a number of long-lived …

The tuatara (Sphenodon punctatus)—the only living member of the reptilian order
Rhynchocephalia (Sphenodontia), once widespread across Gondwana,—is an iconic …