There is abundance of amphibians and reptiles near the channel. This area is particularly busy at night mainly because the plantation on the sides of the channel is fully shielded and the weather is stable. In view of the quantity discovered, Taiwan bamboo viper, pointed-scaled Pitviper and cobra are found with the most quantity. Avirulence snakes commonly consist of green snake, red-banded snake, Big-eyed rat snake, and White stomach snake. Taiwan bamboo snakes are frequently found in spiral position and hiding in dark and humid caves for shade during the day.(b)

Open your eyes along the channel and it is easy to spot traces of frogs. However the most special frog is the Swinhoe’s frog with the sounds similar to bird chirping. Its voice is short and similar to “chirp” and people often mistake it as bird. It is really a frog.

The group of Swinhoe's frog is the one in channel with most quantity. Particularly in summer midnight, it is frequent that a female frog would stay on the side of channel, surrounded by 4 to 5 male frogs. They like to hide in rock apertures with water in daytime and people usually could hear the sound without identifying their position. They are one of the mysterious guests in channel. Their food consists of insects, while the nymph and firefly larvae are one of their food options. Their primary predators are snakes and large birds of prey. The large number of frogs living around the channel are not only the key indicator of environment and ecology but also the main source of vital food for other species and life.(b)

The most representative mammals near the channel are the bats. In the past, it was easy to spot bats at the Qinfong Pavilion at the channel entrance. Excrements were often seen on the table of the pavilion. The excrements of bats are excellent ingredients for Chinese medicine where some people came here early in the morning to pick up the excrement. Another good place for finding traces of bats is the cave of Ancient Channel. However the entrance of the tunnel is now locked mainly to prevent tourists from vandalizing the ecology inside and for the convenience of management.(b)

The most number of active mammals in the channel are belly-banded squirrel. It is easy to spot their naughty figures around the Channel, who would swing in forests. However they are quite shy and by the time you are prepared to station and observe them well, they would have disappeared instantly.

Although Pingding Ancient Channel underwent the hit by Typhoon Soudelor and Typhoon Dujuan while many previously active animals all disappeared, we were fortunate to meet a beautiful damselfly, which royal blue wings and green body were so pretty and charming.

Damselfly is a carnivorous insect with bright colors, which compound eyes are developed on the two sides of the head with similar front and rear wings. Its wings come with pteropoda and it belongs to the same odonatan as dragonfly. The difference between dragonfly and damselfly is that the wings of damselfly are stretched out and overlap during a rest. The body of damselfly is mostly smaller than dragonfly with the smaller body length of damselfly in 1.5cm and the largest one reaching 6~7cm.

In the second channel survey, the most astonishing animal for us was leech. When we were playing water at the origin of Dengfong Channel, we felt the refreshing coldness of river water and experienced the walk on New Channel tunnel where bats could appear. Unknowingly, the terrible leech has quietly sucked on to our feet and pants.

After we returned home from the first survey of New and Ancient Channels, Teacher Wen-Ning and classmates Yunzhen and Kaiteng discovered leech on their feet. When we interviewed Commissioner Zhou at the pavilion next to the Pingdeng Village Police Station, Teacher Ya-chun discovered leech on her wrist and she could not get rid of it since it was sucking too tight. We could only remove the leech after we took the plastic brush. We still talk about the scene of Teacher Ya-Chun screaming with much fun.