Otters are super cute. That one was a real ham. Thanks for sharing.
Having been to Borneo, I'd say that couple totally lucked out in the wildlife department compared to some of the possible alternatives.
I recall a spider the size of a dinner plate that appeared overnight just outside where we were sleeping one night. Some local guy shot it with a pistol... and it was still alive.
I also recall some insect larvae that were like 6 or 8 inches long. I shudder to imagine what those would turn into. Mothra, probably.