Slick and slender snake beats short and stubby lizard in sand swimming

For swimming through sand, a slick and slender snake can perform better than a short and stubby lizard. That’s one conclusion from a study of the movement patterns of the shovel-nosed snake, a native of the Mojave Desert of the Southwest United States. Leer más.

Dinosaurs wiped out rapidly in Europe 66 million years ago

The well-known theory that an asteroid suddenly killed the dinosaurs is based almost entirely on fossils from North America. Leer más.

Microcaecilia butantan • A New Species of Microcaecilia Taylor 1968 (Gymnophiona: Siphonopidae) from northern Brazil

A new species of siphonopid caecilian, Microcaecilia butantan sp. nov., is described based on four specimens from Belterra, in the State of Pará, Brazil. The new species differs from all other Microcaecilia in having a combination of more than 135 primary annuli and long premaxillary-maxillary tooth series that extend posteriorly beyond the choanae. Leer más.

First Report of a Hybridization between Caretta caretta and Chelonia mydas from Jeju Island, South Korea

In this study, we report for the first time a hybridization between Caretta caretta and Chelonia mydas in South Korea. On 7th May 2012, a sea turtle (Jeju sea turtle 01, JST01) was found in the east coast of Jeju Island, South Korea. Leer más.

Descubren una especie de rana andina, muy vulnerable a los cambios ambientales

Investigadores del Museo Nacional de Ciencias Naturales (MNCN), perteneciente al Consejo Superior de Investigaciones Científicas (CSIC), y de la Universidad de Puerto Rico han descrito una nueva especie de rana que, recién descubierta, ya podría estar amenazada por los cambios ambientales. Se trata de una nueva especie de ‘Psychrophrynella’, género de ranas terrestres de la cordillera andina que vive en bosques de niebla y páramos húmedos de zonas de alta montaña. Leer más.