Knowledge of bone pathologies in South American native ungulates is very scarce, which contrasts with other groups of megamammals such as xenarthrans and proboscideans. In this paper, based on morphological and histological analysis, we describe different bone pathologies in two specimens of Toxodon platensis Owen (Notoungulata), one of the most common taxa in the Late Pleistocene faunistic associations of northeastern Argenti...

Understanding the mechanisms of spatial variation of biological invasions, across local‐to‐global scales, has been a major challenge. The importance of evolutionary history for invasion dynamics was noted by Darwin, and several studies have since considered how biodiversity of source and recipient regions can influence the probability of invasions. For over a century, the Panama Canal has connected water bodies and biotas with...

The hypothesis that biotic interactions strengthen toward lower latitudes provides a framework for linking community‐scale processes with the macroecological scales that define our biosphere. Despite the importance of this hypothesis for understanding community assembly and ecosystem functioning, the extent to which interaction strength varies across latitude and the effects of this variation on natural communities remain unre...