Many aspects of the biology of various snake species remain unknown, and the extent of this lack of information is not always clear. As new research usually depends upon previous findings, the gaps in our knowledge and ...

Muchos individuos de la especie Homo sapiens consideran estar separada del resto de criaturas del Reino Animal. Esto implica que hay un desligamiento de las relaciones entre el ser humano y el entorno natural, cuyas causas ...

La temperatura ambiental y los patrones de precipitación han sufrido cambios signifi cativos durante las últimas décadas. Estos cambios globales del clima han generado alteraciones en las características biológicas de los ...

In ectotherms such as lizards, temperature is a key determinant of their behavior and their ability to signal to conspecifics. We asked whether changes in the thermal environment along the distribution of an agamid lizard, ...

Jacky dragons (Amphibolurus muricatus) are ubiquitous in south-eastern Australia and were one of the first Australian reptiles to be formally described. Because they are so common, Jacky dragons are widely used as a model ...

Signal diversification is often the product of sexual and/or natural selection and may be accompanied by genetic differentiation or simply reflect a plastic response to social and environmental variables.We use an agamid ...

Introduced species can have a negative impact on native species, so that detection of new arrivals is fundamental to avoid establishment of breeding populations. Several species of frogs and lizards have been introduced ...

Sexual size dimorphism (SSD) is the result of sexual or natural selection operating differently on the body sizes of females and males. Males of most lizard species are larger than females, suggesting intrasexual selection on ...

Establishing dominance is an important mechanism for determining access to resources such as mates or territories. However, levels of aggression and dominance may vary among populations based on history and variation in ...

The campus of the University of Costa Rica in Limón port city, Costa Rica, known as Sede del Caribe (SC), includes a secondary forest of ca. 40 years old. This forest holds a great potential for environmental education, ...