A recent revision of the anacondas (Serpentes: Boidae: Eunectes), with the description of a
new species of green anaconda, generated extensive publicity, but also provoked …

The effects of genetic introgression on species boundaries and how they affect species'
integrity and persistence over evolutionary time have received increased attention. The …

Scinax is the most species-rich genus of Neotropical treefrogs, with 129 currently recognized
species divided between two major clades, the S. catharinae and S. ruber clades. The S …

Optimal camouflage can, in principle, be relatively easily achieved in simple, homogeneous,
environments where backgrounds always have the same colour, brightness and patterning …

Paradoxical frogs are exclusively aquatic anurans distributed across much of South
America. They have been the subject of several phylogenetic studies, but the results of these …

The aquatic Andean frogs of genus Telmatobius are one of the most threatened amphibian
taxa, with many species having suffered drastic declines and even possible extinction. The …

Seasonally dry forests (SDFs) are one of the most challenging ecosystems for amphibians,
fueling the diversity of this group of vertebrates. An updated inventory of native amphibians …

Recent studies have showed that several species of frogs previously thought to be
widespread throughout Amazonia are species complexes with each individual species …

Oval frogs (Elachistocleis) have a broad geographic distribution covering nearly all of South
America and parts of Central America. They also have a large inter-and intraspecific …

Rhabdias fuelleborni was described by Travassos (1926), who identified it in the lungs of
Rhinella gr. marina (= Bufo marinus) from São Paulo. Later, Kloss (1971) added new …