Snake

Snakes are elongated, legless, carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external ears. Like all squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads with their highly mobile jaws. To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca.

Living snakes are found on every continent except Antarctica, and on most smaller land masses — exceptions include some large islands, such as Ireland and New Zealand, and many small islands of the Atlantic and central Pacific. Additionally, sea snakes are widespread throughout the Indian and Pacific Oceans. More than 20 families are currently recognized, comprising about 500 genera and about 3,400 species. They range in size from the tiny, 10 cm-long thread snake to the reticulated python of up to 6.95 meters (22.8 ft) in length. The fossil species Titanoboa cerrejonensis was 13 meters (43 ft) long. Snakes are thought to have evolved from either burrowing or aquatic lizards, perhaps during the Jurassic period, with the earliest known fossils dating to between 143 and 167 Ma ago. The diversity of modern snakes appeared during the Paleocene period (c 66 to 56 Ma ago). The oldest preserved descriptions of snakes can be found in the Brooklyn Papyrus.

Snake (zodiac)

The Snake (蛇) is one of the 12-year cycle of animals which appear in the Chinese zodiac and related to the Chinese calendar, as well as in related East Asian zodiacal or calendrical systems. The Year of the Snake is associated with the Earthly Branch symbol 巳.

According to one mythical legend, there is a reason for the order of the 12 animals in the 12-year cycle. The story goes that a race was held to cross a great river, and the order of the animals in the cycle was based upon their order in finishing the race. In this story, the Snake compensated for not being the best swimmer by hitching a hidden ride on the Horse's hoof, and when the Horse was just about to cross the finish line, jumping out, scaring the Horse, and thus edging it out for sixth place.

The same 12 animals are also used to symbolize the cycle of hours in the day, each being associated with a two-hour time period. The "hour" of the Snake is 9:00 to 11:00 a.m., the time when the sun warms up the earth, and Snakes are said to slither out of their holes.

Snake Indians

Snake Indians is a collective name given to the Northern Paiute, Bannock, and Shoshone Native American tribes.

The term was used as early as 1739 by French trader and explorer Pierre Gaultier de Varennes, Sieur de la Verendrye when he described hearing of the Gens du Serpent ("Snake people") from the Mandans. This is probably the first written mention of the Shoshone people. The term "Snakes" is also used to refer the Shoshone by British explorers David Thompson and Anthony Henday.

This term was widely used by American immigrants on the Oregon Trail in the Snake River and Owyhee River valleys of southern Idaho and Eastern Oregon. The term "Snake Indian" later included the Northern Paiute tribes found in the basins between the Cascade Mountains and these valleys in Oregon and northern Nevada and northeastern California. These people were the opponents of the California and Oregon Volunteers and U.S Army, in the Snake War.

In Canadian history

From the 1688-1720s, when the British Empire first came into prolonged trade contact with the Western Cree and Blackfoot, both of these groups were united in war against "the Snake Indians" of Canada. It is not clear if this term (used in this period of Canadian history) is meant to refer to Northern Paiute people, or if it is inaccurate, or perhaps entirely unrelated.