Bothrops asper es una especie común en Costa Rica. Sin embargo, las zonas bajas del Pacífico Norte poco y con escasos registros la literatura. Aquí reportamos nuevas localidades de Abangares, Guanacaste, Rica.Bothrops asper, terciopelo, Viperidae, Abangares.

ABSTRACT: Although rare, mycoplasmas are included among the causes of respiratory diseases in reptiles and, order Squamata, three reports these microorganisms causing pythons have already been reported. This study aimed to evaluate occurrence Mycoplasma species captive snakes. A total 26 snakes families Pythonidae (13), Boidae (7), Viperidae (5) and Colubridae (1) from RioZoo, Brazil, were eval...

Snakes typically are not considered top carnivores, yet in many ecosystems they are a major predatory influence. A literature search confirmed that terrestrial ectotherms such as snakes are largely absent in most discussions of predator-prey dynamics. Here, we review classical functional and numerical responses of predator-prey relationships and then assess whether these traditional views are c...

Members of the Crotalus triseriatus species group of montane rattlesnakes are widely distributed across the highlands of Mexico and southwestern USA. Although five species are currently recognized within the group, species limits remain to be tested. Genetic studies suggest that species may be paraphyletic and that at least one cryptic species may be present. We generate 3,346 base pairs of DNA...

A case of envenomation due to viperine snakebite poisoning is presented. Patient showed continuous defibrination, without any other signs of poisoning, which could not be reversed with more than double the usual dose of polyvalent antivenom. This phenomenon could be due to envenomation caused by a snake, probably from Viperidae family, which is not covered by the polyvalent antivenom available ...

Los accidentes ofídicos corresponden a una importante causa de morbilidad y mortalidad nivel mundial, se presentan aproximadamente 2.7 millones eventos anuales. Se conoce gran variedad serpientes venenosas agrupándose en dos principales familias, Elapidae (serpiente marina Coral) Viperidae (tobobas o Viperidos), ambos presentes América Central, siendo estos mas frecuentes las mordeduras por Vip...

The coccidian Caryospora bigenetica was first described in the snake Crotalus horridus (Viperidae) from United States of America. This study represents the first record of the occurrence of C. bigenetica in snakes in South America. Feces were sampled between November 2013 and May 2014 from 256 wild snakes maintained in scientific breeding facilities in the states of Mato Grosso do Sul (MS; n = ...

Pitvipers (Viperidae: Crotalinae) possess unique sensory organs, the facial pits, capable of sensing subtle fluctuations in thermal radiation. Prey acquisition has long been regarded as the sole function of the facial pits. However, the ability to sense thermal radiation could also direct thermoregulatory behavior by remotely sensing nearby surface temperatures. Using a series of behavioral are...