第 0574 號，共 1 402 號

Dog-toothed cat snake

Boiga cynodon

只是會痛會痛，但不會對你造成嚴重傷害。

咬吃：肉

The dog-toothed cat snake is a large, nocturnal snake that is active at night. It lives across Southeast Asia, from southern Thailand to the Philippines and Indonesia, and it is often found in gardens, plantations and towns as well as forests. It is a rear-fanged snake, so its venom is delivered through teeth at the back of its mouth.1

分布在

Southeast Asia: southern Thailand, Peninsular Malaysia, Singapore, Indonesia, Borneo and the Philippines1

亞洲

首頁

It lives in a wide range of places, from primary and secondary forest to cultivated land, rural gardens and urban areas. It is often found in coconut plantations. In forests it lives in the canopy, high in the trees. On Bali it is relatively common in secondary forests and gardens, especially where trees and bushes grow over rivers and streams.1

長度

2 m (6,6 ft)1

最高速度

大約 6,7 km/h（4,2 mph）

在陸地上, 粗略估計

牠吃什麼？

It feeds mainly on small vertebrates such as birds and bird eggs, and may also take lizards and small bats. It hunts by pursuing and overpowering its prey, using both its jaws and its tail to immobilise it.1

Dog-toothed cat snake 的照片 — Dog-toothed cat snake。照片：Bjørn Christian Tørrissen。 CC BY-SA 3.0, Wikimedia Commons.

怎麼認出牠

A slender, large snake that can reach more than 2 m in total length1
Yellowish or pale reddish-brown back with dark brown or black crossbars or spots1
A wavy or irregular dark stripe behind each eye, with a dark streak on each side of the head1
Yellowish belly, sometimes plain or marbled with brown1
Strongly enlarged front teeth in the upper and lower jaws. Indonesian populations include black individuals.1

常被誤認為： Other similar snakes have a more even or nearly even upper and lower line behind the eye, while this species has a distinctly wavy or irregular one. The closely related Boiga hoeseli is found in the Lesser Sundas east of Bali, including Sumbawa and Flores, and not where this species lives.1

毒液力量

咬

咬的時候，毒液會從毒牙或牙齒出來。

牠的毒液有什麼作用？

It may have a potent neurotoxic venom, which attacks the nerves. Its effects have been shown to be reversible with neostigmine, a drug that affects nerve signalling, so envenoming from this species can be treated with anticholinesterase therapy.1

牠對人有多危險？

對人的危險: 疼痛可能會非常痛，但幾乎從來不會很嚴重。

Its venom may be potent, so any bite should be taken seriously. The effects of the venom have been shown to be reversible with treatment.1

如果牠咬人

Envenoming from this species is said to be treatable with anticholinesterase therapy, which is a medical treatment.1
清洗咬傷處，讓傷者保持冷靜，並且就醫。有些種類（例如非洲樹蛇）可能在幾個小時後才致命。

一定要先打緊急電話（112、000、911）。這是一般急救指引，不是醫療建議。急救基本知識

注意安全

絕對不要碰、抓或捉弄野生動物，就算是很小的動物，就算牠看起來在睡覺或已經死了也一樣。
給牠空間。如果遇到了，保持冷靜，慢慢往後退，讓牠自己離開。
如果被牠咬了：保持冷靜，保持不動，打緊急電話（112、000、911）或趕快去醫院。記住牠的樣子，有照片會很有幫助。

牠不是想來抓你。牠用毒液來捕捉食物或保護自己，而且牠更想躲起來。更多安全知識

在世界上的哪裡？

非洲亞洲歐洲北美洲南美洲澳洲與大洋洲

牠有多大？

牠有多長？

跟 4 隻家貓從鼻子接到尾巴一樣長跟 11 根香蕉頭尾相接一樣長可以在 54 秒內跑完 100 公尺（最快的人類需要 9.6 秒）

Dog-toothed cat snake 跟「你」比起來有多大？

只是在你的瀏覽器裡做算術。什麼都不會儲存，也不會傳送到任何地方。

牠有多快？

一個正在走路的人 大約 5 km/h (3,1 mph)

Dog-toothed cat snake 大約 6,7 km/h (4,2 mph)

騎腳踏車的小朋友 大約 12 km/h (7,5 mph)

值得知道

小知識

Its venom is neurotoxic, but its effects have been shown to be reversible with a drug called neostigmine.1

It is known to live high in the forest canopy, where it hunts birds, lizards and small bats.1

The eggs often stick together in a clutch, and the young cut a slit from inside the egg about one day before they hatch.1

The black spitting cobra (Naja sumatrana) is known to prey on this snake.1

給毒液專家

學名: Boiga cynodon
類群: 後毒牙蛇
家人: Colubridae2
排序: Squamata
各大洲: 亞洲
寶寶: It is egg-laying (oviparous). Females lay 6 to 12 eggs per clutch, and the eggs are about 52 mm long and 24.6 mm wide on average.1
牠在野外的狀況: Least concern1
對人的危險: 2 / 5: 疼痛3