There appears to be quite a fair bit of wildlife sightings on Pulau Ubin of late. It's always wonderful news to hear of possibly other mammals on the island other than wild boars and homosapiens! (Oh, and we have civet cats and otters too!)
On the other hand, Ubin has had its share of mega faunas such as the tapirs and a visiting elephant in the 90s.
"It's a zoo out there", Pulau Ubin Stories, 03 June 2004
Animals of Ubin, Pulau Ubin Stories, 4 April 2005
Assorted Elephant Stories on Pulau Ubin Stories