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The article discusses a study conducted to find the population density of Vitreorana uranoscopa, a frog species, and the reasons behind variation in the population density. The study found air pollution as the main reason for decline of this species in Atlantic forest. It mentions that some species including eurygnatha and uranoscopa are declining in southeastern Brazil.

The article presents a report on several cases of anomalies from the anuran population of Pelophylax (P.) esculentus and Rana (R.) temporaria in southern Germany in 2010. The examination of P. esculentus revealed that 13 individuals showed anomalies, such as polydactyly or malformations of the hand. Polydactyle specimens indicated variation in several fingers with one to four more toes or one more finger on the forelimbs. Polydactyly or malformations of extremities were discovered among the samples of R. temporaria with one case of polymely.

The article offers information on the occurrences of the species Physalaemus lisei. It states that species comprises of 45 described species which are distributed in South America east of the Andes, ranging from southeastern Colombia and southern Venezuela to Uruguay and adjacent Argentina. It further details that Physalaemus lisei are found in southern portion of the Atlantic rainforest to northeastern Rio Grande do Sul and adjacent Santa Catarina states of Brazil.

The article discusses the predators known for Trachycephalus mesophaeus (T. mesocephalus) a hylid found in the lowlands of Mexico. It mentions that these species secretes white volatile noxious alkali that can irritate mucous membranes as a defense against predators. It reports the first predation attempt of parrot snake (Leptophis ahaetulla) other than Liophis miliaris on T. mesocephalus. Moreover, Certophrys aurita known for predating on frogs was recorded with an adult specimen of T. mesophaeus in its mouth though it was not clear record of predation. Thus, predation of both Leptophis ahaetulla and Certophrys aurita on T. mesophaeus has no existing valid predation record.

The article discusses the study which records the grass snake as a predator of the great ramshorn snail, in which the snail-eating snakes were documented by photographs taken in Tübingen, Germany. It mentions that other predators detect snails by following their slime trails while newts and tadpoles are included in the dietary spectrum of grass snakes. It adds that the diet of grass snakes also include Arion empiricorum and Limaz sp. and accepts slugs as food. Moreover, the snakes were observed that it has been attracted by the scent of the snail.