Lagomorphs (a group that consists of pikas, hares, rabbits and allies) are notable for their conservative morphology retained for most of their over 50 million years evolutionary history. On the other hand, their remarkable morphological uniformity partly stems from a considerable number of homoplasies in cranial and dental structures that hamper phylogenetic analyses. The premolar foramen, an ...

Abstract Lagomorphs show extensive seasonal variation in their reproduction. However, the factors causing this large have so far mostly been investigated intraspecifically and therefore provide only some exemplary comparisons of lagomorph reproductive seasonality. The present study applies both a categorical description (birth season categories 1–5) quantitative measure length months) to summar...

The coyote (Canis latrans) is a widespread predator with high degree of adaptation to different ecosystems. objective this study was estimate the relative abundance index, habitat selection, and diet C. latrans through scent stations, in two types vegetation located northwestern Chihuahua. From April 2018 March 2019, ten fixed stations (SS) were placed pine-oak forest other semi-open grassland,...

Free fatty acids (FFAs) are rapidly mobilized by ACTH and have been shown to be potent endogenous modulators of steroid-protein interactions. We increased FFA in lagomorphs by ACTH and then separated the transient increase in glucocorticoid binding capacity of plasma into that accounted for by changes in binding to albumin and to corticosteroid-binding globulin (CBG). Sequential injections of d...