第 0533 号，共 1 402 张

Southwestern speckled rattlesnake

Crotalus pyrrhus

需要看医生很少致命，但被咬了要去看医生。

咬伤吃：肉

The southwestern speckled rattlesnake is a medium-sized venomous snake that lives among rocks in the desert southwest of the United States and north-western Mexico. It is active mostly at night and hunts small mammals. Its colours vary with the rocks and soil around it, so it can blend in well.1

生活在

Southern California, southern Nevada, southwestern Utah, western Arizona, and north-western Mexico (Sonora and northern Baja California)1

北美洲

首页

It lives mostly in rocky country, including hillsides, canyons, talus slopes and rock ledges, and it shelters in rock crevices and mammal burrows during the day. In southern California it has sometimes been found in chaparral or cactus country, but it rarely strays far from rocks. It has been found at elevations above 1,500 m (5,000 feet).1

长度

30 cm到1.2 m (1 ft到3.9 ft)1

最高速度

约 3.6 公里/小时（2.2 英里/小时）

在陆地上, 粗略估计

它吃什么？

It eats mostly small mammals, though it also takes birds and lizards. Juveniles eat lizards especially. One large specimen had eaten a nearly grown cottontail rabbit.1

Southwestern speckled rattlesnake的照片 — Southwestern speckled rattlesnake。照片：Athene cunicularia (talk) 16:54, 28 March 2008 (UTC). Original uploader was Athene cunicularia at en.wikipedia。 CC BY-SA 3.0, Wikimedia Commons.

怎样认出它

Ground colour may be pink, brown, grey, yellow or nearly white, speckled with black and white1
The pattern, if present, may be made of rhombs, bands or blotches1
The tail is ringed1
Adults average about 91 cm long and sometimes exceed 120 cm1
Mostly active at night, becoming more active by day during cooler months1

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？

This is a venomous snake, and its bite causes pain and tissue damage. In one case a bite on a thumb caused severe pain for about an hour, followed by discolouration, swelling and large blisters on the hand. In a second case, a bite on the heel first felt like a thorn prick, and within hours the calf was swollen and discoloured, with pain later spreading to the groin.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。

Two recorded bite cases both caused severe pain, swelling and discolouration.1

好消息：医生有药（抗毒血清）或治疗方法。1

如果它咬人

Bites are treated with antivenin in hospital, so get there fast.1
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 2.5 只家猫鼻子接尾巴一样长和 7 根香蕉首尾相接一样长100 秒就能跑完 100 米（最快的人需要 9.6 秒）

Southwestern speckled 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)

Southwestern speckled rattlesnake 约 3.6 公里/小时 (2.2 mph)

一个在走路的人 约 5 公里/小时 (3.1 mph)

值得了解

事实

One snake had eaten eight birds, most likely goldfinches, that had come to a small bird bath fountain at a desert camp.1

Its colours and patterns change with the rocks and soil where it lives, which helps it blend in.1

It is mostly active at night and shelters in rock crevices or mammal burrows during the heat of the day.1

Snake enthusiasts and the venomous snake trade often call it a 'speck', with local versions such as 'blue speck' and 'lava speck'.1

给毒液专家

学名: Crotalus pyrrhus
类别: 响尾蛇
家人: Viperidae2
排序: Squamata
大洲: 北美洲
宝宝: It gives birth to live young, up to 12 at a time. Newborns are about 30 cm long and mostly eat lizards.1
对人的危险: 3 / 5: 严重3