Tim Rowe, professor of paleontology at The University of Texas at Austin’s Jackson School of Geosciences, led the effort to describe the new dinosaur along with co-authors Hans-Dieter Sues, curator of vertebrate paleontology at the National Museum of Natural History in Washington, DC and Robert R. Reisz, professor and chair of biology at the University of Toronto. The description appears in the online edition of the journal Proceedings of the Royal Society B on Oct. 6. Sarahsaurus, which lived about 190 million years ago during the Early Jurassic Period, was 14 feet long and weighed about 250 pounds. Sarahsaurus was a sauropodomorph, a small but closely related ancestor to sauropods, the largest land animals in history. |  |
 | En el marco del XI Congreso luso-español de Herpetología, que se ha celebrado en Sevilla, Pleguezuelos ha recalcado, en una entrevista con la Agencia Efe, la importancia de la conservación de las especies de anfibios y reptiles de Andalucía, por encima de las del resto de Europa, ya que poseen «más diversidad genética». «Al encontrarse en el cuadrante del sureste ibérico, que se caracteriza por ser más árido y con menos precipitaciones, no hay mucha variedad de reptiles y, menos aún, de anfibios, pero en los genes está todo lo que somos y es interesante que la comunidad tenga esta aportación», ha sostenido el investigador. |
Using data collected from the public by the Frog Mortality Project and Froglife, scientists from ZSL found that, on average, infected frog populations experienced an 81 per cent decline in adult frogs over a 12 year period. «Our findings show that Ranavirus not only causes one-off mass-mortality events, but is also responsible for long-term population declines. We need to understand more about this virus if we are to minimise the serious threat that it poses to our native amphibians,» says Dr Amber Teacher, lead author from ZSL. |  |
The «turtle and dugong capital of the world,» the northern Great Barrier Reef (GBR) and Torres Strait region, faces increased pressure under climate change from human actions such as fishing, hunting, onshore development and pollution.
