La actualización de la lista especies presentes en un país es una tarea continua que llena vacíos información y apoya toma decisiones. En los últimos cinco años, ha habido aumento del número mamíferos descritas como nuevas Colombia, así primeros registros cambios taxonómicos. Con el fin actualizar las realizamos revisión exhaustiva taxonómicos 528 registradas listas previas. Agregamos descritas...

Deinotheres (Proboscidea, Deinotheriidae) are a clade of non-elephantiform proboscideans that originated in Africa and dispersed into Eurasia by the early Miocene. In Europe, deinotheres first recorded Greece during MN3, although they did not become common faunal element throughout Europe until MN4. Early Miocene (MN3–MN4) deinothere remains from generally assigned to different species (Prodein...

Variations in mitochondrial DNA characters were used to characterize two morphologically similar and sympatric species of Neotropical terrestrial rodents of the genus Proechimys (Mammalia: Echimyidae). We sequenced both cytochrome b (1140pb) and part of the control region (445pb) from four individuals of P. cuvieri and five of P. cayennensis from French Guiana, which allowed us to depict intra-...

Exon structure is relatively well conserved among orthologs in several large clades of species (e.g. Mammalia, Diptera, Lepidoptera) across evolutionary distances of up to 80 million years. Thus, it should be straightforward to predict the exon structures in novel species based upon the known exon structures of species that have had their genomes sequenced and well assembled. Being able to pred...

Sirtuins are NAD(+)-dependent protein deacetylases regulating metabolism, stress responses, and aging processes. Mammalia have seven Sirtuin isoforms, Sirt1-7, which differ in their substrate specificities and subcellular localizations. The physiological functions of Sirtuins make them interesting therapeutic targets, which has stimulated extensive efforts on development of small molecule Sirtu...

The heart is the vital organ that tirelessly pumps oxygenated blood from the lungs to the organs and peripheral tissues via the circulatory system. In return, deoxygenated blood is returned via the heart and the pulmonary circulation to the lungs to expel waste carbon dioxide (figure 1). The average human heart beats approximately 72 beats per minute totalling around 2.5 billion beats in a 66-y...

Here we report the occurrence of Ancylostoma (Ancylostoma) buckleyi (Le Roux and Biocca, 1957) (Nematoda: Ancylostomatidae) in the small intestine of Pampas foxes (Lycalopex gymnocercus) (Mammalia: Canidae). This fox is the most abundant native carnivore in southern South America, where it inhabits grasslands, open woodlands and areas highly modified by extensive ranching and agricultural activ...