Color signals play an important role in intraspecific communication and are well studied in catarrhine primates, which exhibit uniform trichromatic vision that is well suited to detecting such signals. Platyrrhine primates exhibit polymorphic color vision with different individuals possessing different color vision types in most species. Intriguingly, some platyrrhine species exhibit bare faces, which are convergent with those of catarrhines.
View Article and Find Full Text PDFA novel series of potent quinoline-based human H and H bivalent histamine receptor antagonists, suitable for intranasal administration for the potential treatment of allergic rhinitis associated nasal congestion, were identified. Compound 18b had slightly lower H potency (pA 8.8 vs 9.
View Article and Find Full Text PDFNeotropical primate parasitology has been dominated by studies of howler monkeys (Alouatta spp.), whereas the literature on the parasites of other platyrrhines is relatively sparse. We analysed the faeces of white-faced capuchins (Cebus capucinus) in a Costa Rican tropical dry forest and recovered 8 parasite taxa (Filariopsis barretoi,Giardia duodenalis, Strongyloides sp.
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