第 0350 号，共 1 402 张

Saharan horned viper

Cerastes cerastes

名字的由来： It is named after the pair of horn-like scales above each eye.1

需要看医生很少致命，但被咬了要去看医生。

蝰蛇

咬伤吃：肉

对人的危险: 严重被咬了要去看医生。死亡非常罕见。

The Saharan horned viper is a venomous snake that lives in the deserts of North Africa and parts of the Arabian Peninsula. It has a pair of small, horn-like scales above its eyes. Its venom can cause serious harm, so it is important to know what it looks like.1

生活在

Deserts of Northern Africa, parts of the Arabian Peninsula and the Levant1

非洲, 亚洲

首页

It prefers dry, sandy areas with a few rocky outcrops, but avoids coarse sand. It is sometimes found around oases and up to 1,500 metres above sea level. It prefers cooler places, where annual average temperatures are 20 °C or less.1

长度

30 cm到85 cm (1 ft到2.8 ft)1

最高速度

约 3.3 公里/小时（2.1 英里/小时）

在陆地上, 粗略估计

它吃什么？

It mainly eats lizards, especially geckos, small rodents and birds. It is an ambush predator that lies buried in sand next to rocks or under vegetation. It sometimes travels long distances at night to find prey.1

Saharan horned viper的照片 — Saharan horned viper。照片：Bernard DUPONT。 CC BY-SA 4.0, iNaturalist.

怎样认出它

A pair of horn-like scales sits above each eye, although some individuals have no horns.1
Its colour is yellowish, pale grey, pinkish, reddish or pale brown, and almost always matches the sand or soil where it lives.1
A row of dark, semi-rectangular blotches runs along its back, and the belly is white.1
Its tail is usually thin and may have a black tip.1
It moves by sidewinding, pressing its body into the sand and leaving whole-body impressions.1

常被误认为： Its close relative Cerastes gasperettii was once considered a subspecies of this snake. The Saharan horned viper has a larger head relative to its body and horns are more common in it. When threatened, it rubs its coils together to make a rasping noise, which is similar to the sound made by snakes of the genus Echis, so sound alone does not identify it.1

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？

Its venom is reported to act much like the venom of Echis snakes. A bite usually causes swelling, bleeding (haemorrhage), tissue death (necrosis), nausea, vomiting and blood in the urine. A high level of phospholipase A2, an enzyme that damages cells, may cause heart and muscle damage.1

它对人有多危险？

对人的危险: 严重被咬了要去看医生。死亡非常罕见。

The estimated lethal dose of venom for a human is 40–50 mg of dried venom. Its venom is strong enough to cause serious harm in people.1

它害怕时会做什么？

If threatened, it forms a C-shaped posture and rapidly rubs its coils together, producing a rasping noise. It is otherwise fairly placid.1

如果它咬人

让人保持安静不动，被咬的肢体与心脏保持同一高度，摘下戒指和紧身物品，尽快送医院。

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 1.5 只家猫鼻子接尾巴一样长和 5 根香蕉首尾相接一样长110 秒就能跑完 100 米（最快的人需要 9.6 秒）

Saharan horned viper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)

Saharan horned viper 约 3.3 公里/小时 (2.1 mph)

一个在走路的人 约 5 公里/小时 (3.1 mph)

值得了解

事实

Its venom is strong enough that an estimated 40–50 mg could be lethal to a human.1

Its scales are strongly keeled, which is what makes its rasping warning sound.1

When it moves by sidewinding, its body leaves impressions in the sand that can be used to count its ventral scales.1

In ancient Egypt, a hieroglyph of this snake was used for the letter f, based on the species name ft.1

Females grow larger than males, and males have larger heads and eyes.1

谣言粉碎机

谣言： All Saharan horned vipers have horns above their eyes.

真相： Hornless individuals do occur, although many have the horns.1

给毒液专家

学名: Cerastes cerastes
类别: 蝰蛇
家人: Viperidae2
排序: Squamata
大洲: 非洲, 亚洲
宝宝: It lays eggs, 8–23 at a time, under rocks and in abandoned rodent burrows. The eggs hatch after 50 to 80 days.1
对人的危险: 3 / 5: 严重3