问题补充：
求一篇关于毒蛇的英文介绍词汇不要太难,句式较简单,适合高中生阅读,大概在1500字以内
答案：
Eastern Diamondback Rattlesnake - Commonly found in the SE U.S.in lower coastal plains; SE North Carolina to Florida Keys,W to S Mississippi and E Louisiana.Attains a maximum length of 96,which makes it our largest rattlesnake.Has a reputation for being the most dangerous snake in North America.Found from sea level to 500.
Timber Rattlesnake - Commonly found in most of the eastern US,except the extreme northern regions.Attains a maximum length of about 75.Prefers remote wooded hillsides with rock outcrops,swampy areas and floodplains.Found from sea level to 6,600.
Mojave Rattlesnake - Commonly found in southeastern US; S Nevada,S California and SW Utah.Attains maximum length of about 51.Prefers upland desert flatland supporting mesquite,creosote bush and cacti; also arid lowland with sparse vegetation,grassy plains,Joshua tree forests,and rock hills.Found from sea level to 8,300.
Western Diamondback Rattlesnake - Commonly found in the southwestern US,from SE California eastward to central Arkansas.Attains a maximum length of about 84.Prefers arid and semiarid areas; brush desert,rocky canyons,bluffs along rivers and rocky foothills.Found from sea level to 7,000.
Speckled Rattlesnake - Commonly found in the desert areas of the southwestern U.S.Attains maximum length of about 52.Prefers rugged rocky terrain,rock outcrops,deep canyons,talus and chapparal amid rock piles and boulders.Can be found from sea level to 8,000.Active during the day in spring and fall,at night in summer.
Pygmy Rattlesnake - Usually 15 - 31 long and ranges from eastern North Carolina to the Florida Keys west to eastern Oklahoma and east Texas.It prefers mixed pine-hardwood forest,sandhills,marshes and the areas near ponds.
Massasauga - This rattlesnake is usually 18 - 39 long.Unlike other rattlers,it has 9 enlarged scales on top of its head.It ranges from northwest Pennsylvania west to eastern Iowa and southwest into Texas.Its habitat ranges from dry woodlands to rocky hillsides to bogs and swamps.
Sidewinder - Commonly found in the desert areas of the southwestern U.S.Attains maximum length of about 33.Prefers arid desert flatland with sandy washes or mesquite-crowned sand hammocks.Can be found from below sea level to 5,000.Travels over shifting surfaces by sidewinding,a process by which the snake makes use of static friction to keep from slipping when crossing soft sandy areas.It leaves a trail of parallel J-shaped markings behind it.Primarily nocturnal,it is usually encountered crossing roads (and trails) between sundown
