第 0604 号，共 1 402 张

Night snake

Hypsiglena torquata

无害对人无害。不用担心。

咬伤吃：肉

The night snake is a small snake that is most active at dusk and at night. It lives in western Mexico, and it is rarely seen in the Okanagan Valley of Canada. It has rear fangs and mild venom, but it is not dangerous to people.1

生活在

Western Mexico; rare sightings in the Okanagan Valley, British Columbia, Canada1

北美洲

首页

Night snakes are often seen at night crossing roads. During the day they hide under rocks, boards, dead branches and other surface litter.1

长度

30 cm到66 cm (1 ft到2.2 ft)1

最高速度

约 4.5 公里/小时（2.8 英里/小时）

在陆地上, 粗略估计

它吃什么？

Its main prey is lizards, especially side-blotched lizards and their eggs. It also eats juvenile rattlesnakes, blind snakes, salamanders, frogs and large insects.1

Night snake的照片 — Night snake。照片：Francisco Farriols Sarabia。 CC BY 4.0, iNaturalist.

怎样认出它

Pale grey, light brown or beige, with dark grey or brown blotches on the back and sides1
A pair of dark brown blotches on the neck1
A black or dark brown bar behind each eye1
Vertical pupils and a flat, triangular head1
A white or yellowish belly1

毒液之力

咬伤

它咬的时候，毒液通过毒牙或牙齿出来。

它的毒液会造成什么？

The night snake is slightly venomous. It uses its venom to subdue its prey, not to harm people.1

它对人有多危险？

对人的危险: 轻微像被蜜蜂蜇一下或更轻。对人基本无害。

The night snake poses no threat to humans and is not dangerous to people.1

它害怕时会做什么？

If threatened, it coils up and thrusts its coils at the threat while flattening its head into a triangular defensive shape.1

如果它咬人

清洗咬伤处，让人保持冷静并就医。有些种类（比如非洲树蛇）可能几小时后才致命。

一定先拨打你的急救电话（112、000、911）。这里是一般急救指导，不是医疗建议。急救基础

注意安全

永远不要摸、抓或逗弄野生动物，即使是很小的，即使它看起来在睡觉或已经死了。
给它留出空间。如果遇到它，保持冷静，慢慢后退，让它走自己的路。
如果被它咬了：保持冷静，保持不动，拨打你的急救电话（112、000、911）或尽快去医院。记住它长什么样，拍张照片会有帮助。

它不是冲着你来的。它用毒液捕猎或保护自己，而且它更愿意躲起来。更多安全知识

在世界哪里？

非洲亚洲欧洲北美洲南美洲澳大利亚和大洋洲

它有多大？

它有多长？

和 4 根香蕉首尾相接一样长80 秒就能跑完 100 米（最快的人需要 9.6 秒）

Night snake和你比起来有多大？

只是在你的浏览器里算一算。什么都不会被保存或发送到任何地方。

它有多快？

一只陆龟 约 0.3 公里/小时 (0.19 mph)

Night snake 约 4.5 公里/小时 (2.8 mph)

一个在走路的人 约 5 公里/小时 (3.1 mph)

值得了解

事实

In British Columbia, only about 20 sightings have been recorded since 1980, so it is very rare there.1

Night snakes hibernate during winter and can aestivate during some summer periods.1

They are both crepuscular, meaning most active at dawn and dusk, and nocturnal.1

给毒液专家

学名: Hypsiglena torquata
类别: 后沟牙蛇
家人: Colubridae2
排序: Squamata
大洲: 北美洲
宝宝: Females lay a clutch of 2 to 9 eggs between April and August. The eggs hatch in 7 to 8 weeks, usually in late summer.1
对人的危险: 1 / 5: 轻微3