第 0529 号，共 1 402 张

Rock rattlesnake

Crotalus lepidus

名字的由来： Its common name comes from the rocky outcrops and talus slopes where it spends most of its life.1

需要看医生很少致命，但被咬了要去看医生。

响尾蛇

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 rock rattlesnake is a small rattlesnake that lives in the south-western United States and northern central Mexico. It spends most of its life among rocks and hides well by blending in with its surroundings. It is venomous, so it is important to know what it looks like and to give it plenty of room.1

生活在

Southwestern United States (south-eastern Arizona, southern New Mexico, south-western Texas) and northern central Mexico1

北美洲

首页

It lives mainly in rocky outcrops and talus slopes, and man-made road cuts are often a favourite place. Most people bitten by this snake were hiking among rocks where it lives.1

长度

81 cm (2.7 ft)1

最高速度

约 3.4 公里/小时（2.1 英里/小时）

在陆地上, 粗略估计

它吃什么？

It eats small mammals, lizards and sometimes frogs. It is often more active at colder temperatures than other rattlesnake species.1

Rock rattlesnake的照片 — Rock rattlesnake。照片：Caudatejake。 CC BY-SA 4.0, Wikimedia Commons.

怎样认出它

Usually light grey with darker grey banding, especially near areas of limestone1
Snakes at higher altitudes tend to be darker1
The mottled form from the Davis Mountains is often pinkish with dark-grey speckling rather than clear banding1
The banded form has clean, distinct banding with little speckling or mottling1
Has a large, rounded head, vertical pupils and a rattle on the tail. It rarely grows longer than 81.3 cm1

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 mainly a hemotoxin, a type of venom that acts on the blood and body tissues. It can also have significant neurotoxic effects, which attack the nerves.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 snake is not aggressive and relies on camouflage, so it often will not strike or rattle unless it is harassed. However, if someone steps on it or touches it by accident, its immediate reaction is to bite. Most people bitten by this snake were hiking among rocks.1

好消息：医生有药（抗毒血清）或治疗方法。1

它害怕时会做什么？

It relies on camouflage and will often stay still rather than strike or rattle unless it is physically harassed.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）

Rock rattlesnake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)

Rock rattlesnake 约 3.4 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

A new segment is added to the rattle each time the snake sheds its skin, but the rattle can break off, so segments do not give a reliable age.1

Its rattle is made of keratin, the same material as human fingernails.1

Its colour generally reflects the colour of the rock where it lives, which helps it stay hidden.1

The young take three or more years to mature.1

谣言粉碎机

谣言： You can tell a rock rattlesnake's age by counting the segments on its rattle.

真相： A segment is added each time the snake sheds, but the rattle is fragile and can break off, and shedding frequency varies. So the number of segments cannot tell you its age.1

给毒液专家

学名: Crotalus lepidus
类别: 响尾蛇
家人: Viperidae2
排序: Squamata
大洲: 北美洲
宝宝: It is ovoviviparous, so it gives birth to live young, six to eight at a time, about four months after breeding in spring. The young look like small versions of the parents.1
它在野外过得怎么样: Least Concern (IUCN Red List). It is listed as a threatened species by New Mexico.1
对人的危险: 3 / 5: 严重3