Excretion patterns of solute and different-sized particle passage markers in foregut-fermenting proboscis monkey ( Nasalis larvatus ) do not indicate an adaptation for rumination

Abstract Behavioral observations and small fecal particles compared to other primates indicate that free-ranging proboscis monkeys ( Nasalis larvatus ) have a strategy of facultative merycism (rumination). In functional ruminants (ruminant and camelids), rumination is facilitated by a particle sorti...

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