Passing by a lumber-soaking pool, Pan's instinct tells him to stop the jeep for a look around. With the help of a feeble flashlight, we see a pond covered with duckweed, broken here and there by eight or nine "spotted brown frogs" (Rana adenopleura) submerging and surfacing. These expert divers are about to open their throats and have a little yodeling contest of their own.
路上經過泡木柴的水池，讓潘智敏直覺地停下車來一探究竟，藉著微弱的手電筒燈光，滿是浮萍的水面，只見八、九隻腹斑蛙悠哉的載沈載浮，這群潛泳高手也準備扯開喉嚨拚個高下。