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Globally, pangolins are threatened by poaching and illegal trade. Taiwan presents a contrary situation, where the wild pangolin population has stabilized and even begun to increase in the last two decades. This paper illustrates the factors responsible for causing mortality and morbidity in the wild Taiwanese pangolin (Manis pentadactyla pentadactyla) based on radio-tracking data of wild pangolins and records of sick or injured pangolins admitted to a Taiwanese wildlife rehabilitation center. Despite being proficient burrowers, results from radio-tracking show that Taiwanese pangolins are highly susceptible to getting trapped in tree hollows or ground burrows. Data from Pingtung Rescue Center for Endangered Wild Animals showed that trauma (73.0%) was the major reason for morbidity in the Taiwanese pangolin with trauma from gin traps being the leading cause (77.8%), especially during the dry season, followed by tail injuries caused by dog attacks (20.4%). Despite these threats, Taiwan has had substantial success in rehabilitating and releasing injured pangolins, primarily due to the close collaboration of Taiwanese wildlife rehabilitation centers over the last twenty years.

The Formosan pangolin mainly inhabits the lowland forest in Taiwan. Biological information on pangolins is limited due to their solitary behavior. This study reports the first field record of the behavior development and growth pattern of a newborn male Formosan pangolin during the entire nursing period in the wild. The methods used in this study were radio-tagging and camera-trapping. Data collection for this study was conducted from November 2014 until May 2015. The nursing period was 157 days. The infant started to exit the nursing burrow alone at 11 weeks old, with significant soil scraping and licking behaviors. The duration and distance of the exploring were both extended considerably after 15 weeks old. All exploring behaviors that were recorded occurred after the mother had left the burrow. The total body length of the infant pangolin growth was at a relative constant rate of 1.2 cm/week during the nursing period, which was faster than the only record from a hand-reared individual (0.7 cm/week). This study presents a useful method to monitor the maternal behaviors and infant growth pattern for the Formosan pangolin under natural conditions.