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Evolving in thin air - Lessons from the llama fetus in the altiplano
(CIENCIAS, 2007)
Compared with lowland species, fetal life for mammalian species whose mothers live in high altitude is demanding. For instance, fetal llamas have to cope with the low fetal arterial PO2 of all species, but also the likely ...
Comparative study of mouthparts of three species of horse flies of the tribe Pangoniini of Chilean distribution (Diptera: Tabanidae)
(CIENCIAS, 2004)
Mouthparts of 3 species representing Esenbeckia Rondani, Protodasyapha Enderlein, and Veprius Rondani of the tribe Pangoniini were examined by scanning electron microscopy (SEM), and their structures are herein described. ...