The herbivorous sauropod dinosaurs of the Jurassic and Cretaceous periods were the largest terrestrial animals ever, surpassing the largest herbivorous mammals by an order of magnitude in body mass. Several evolutionary lineages among Sauropoda produced giants with body masses in excess of 50 metric tonnes by conservative estimates. With body mass increase driven by the selective advantages of large body size, animal lineages will increase in body size until they reach the limit determined by the interplay of bauplan, biology, and resource availability. There is no evidence, however, that resource availability and global physicochemical parameters were different enough in the Mesozoic to have led to sauropod gigantism. Leer más.

El tiranosaurio no era un vulgar carroñero, como algunos científicos provocadores lo afirmaban, sino un temible predador, según un estudio publicado el miércoles que rehabilita al monstruo en su categoría de rey de los dinosaurios. Leer más.

Increased exposure to ultraviolet radiation could be linked to the decline of amphibian populations. Leer más.

Active map: Crossings on this map are considered active – there are definitely toads using them and there may be a local Patrol. Zoom into your local area to see if there are any registered toad crossings near by. Leer más.