第 0530 号，共 1 402 张

Ridge-nosed rattlesnake

Crotalus willardi

名字的由来： The scientific name willardi honours Frank Cottle Willard, a businessman from Tombstone, Arizona, who discovered the snake.1

只是会疼会疼，但不会对你造成严重伤害。

响尾蛇

咬伤吃：肉

对人的危险: 很疼可能真的很疼，但几乎从不严重。

The ridge-nosed rattlesnake is a small venomous snake with a raised ridge on the end of its nose. It lives in wooded mountains in the southwestern United States and Mexico, and it is the official state reptile of Arizona. Its bite is rarely a serious threat to people.1

生活在

Southwestern United States (Arizona, New Mexico) and northern Mexico, mainly in the sky island mountain region1

北美洲

首页

This snake is rarely found outside high-elevation habitats, especially wooded mountain ranges in the southwest. Each subspecies lives in only a few mountain ranges, so meeting one is rare.1

长度

30 cm到60 cm (1 ft到2 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 is an ambush hunter that coils and waits for prey to come within striking range. It eats small mammals, birds, lizards and large centipedes. Young snakes mostly eat centipedes and lizards, while adults mostly eat mammals and birds.1

Ridge-nosed rattlesnake的照片 — Ridge-nosed rattlesnake。照片：[Photo by Robert Bryson] Lemos-Espinal JA, Smith GR, Woolrich-Piña GA, Cruz A (2017) Amphibians and reptiles of the state of Chihuahua, Mexico, with comparisons。 CC BY 4.0, Wikimedia Commons.

怎样认出它

A small rattlesnake, usually 30 to 60 cm long1
A dark brown base colour with pale or white horizontal stripes1
A clear ridge on the snout, formed by upturned scales on the tip of the nose1

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 largely hemotoxic, meaning it damages blood and the tissue around the bite. Because the snake is small, it injects only small amounts of venom, so its bite is not as life-threatening as that of larger rattlesnakes. A bite can still cause pain and discomfort.1

它对人有多危险？

对人的危险: 很疼可能真的很疼，但几乎从不严重。

No deaths have been documented from ridge-nosed rattlesnakes. A bite is rare, but it can still cause pain and discomfort.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 3 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）

Ridge-nosed 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)

Ridge-nosed rattlesnake 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

It is the official state reptile of Arizona.1

The snake's ridge is made by upturned scales on the tip of its nose, which makes it easy to recognise.1

Although it is a rattlesnake, it gives birth to live young. The babies develop inside eggs that stay within the mother until they are born.1

谣言粉碎机

谣言： Every rattlesnake bite is equally deadly.

真相： This species has very low venom yields, so its bite is not as life-threatening as those of larger rattlesnakes, and no deaths have been documented.1

给毒液专家

学名: Crotalus willardi
类别: 响尾蛇
家人: Viperidae2
排序: Squamata
大洲: 北美洲
宝宝: It gives birth to live young rather than laying eggs. Females produce 2 to 9 young, averaging five, in late July or August, after a gestation of about four to five months.1
它在野外过得怎么样: Least Concern (IUCN). The New Mexico ridge-nosed rattlesnake subspecies (C. w. obscurus) is endangered.1
对人的危险: 2 / 5: 很疼3