Physically they are quite large and massive, averaging over 8 feet in length, although their stature when crawling on the ground almost never exceeds 5 feet. The color pattern generally consists of a dusty-looking gray-brown ground color, but it may also be pinkish-brown, brick red, yellowish, pinkish, or chalky white. One of the differentiating features between males and females is that males have thicker and longer tails, but both are equipped with a rattle. Unlike most other Anthros, they reproduce through oviparity, and females lay a pair of eggs in a sandy basin after fertilization occurs through sexual acts.

The Rattlesnake people are semi-nomadic tribes and were initially hunter-gatherers only. When they lived on mountain slopes, both males and females shared the responsibility of gathering and providing food, but when they reached plains, hunting became predominant, which has always been considered a male activity and the main source of prestige. Descent and inheritance pass through the maternal line, and females hold an important role as they are responsible for resource management, trade and education. Their settlements consist of teepees, traditionally made of animal skins or canvas covering, upon wooden poles all built together in as little space as possible. Thanks to a firepit in the earthen floor center, a teepee stays warm in winter, while in summer, the bottom edges of a teepee can be rolled up, letting in cool breezes and helping regulate warmth.

Most of their livelihood comes from hunting trips and some slender cattle ranching, and they mainly prefer meat from bisons, antelopes, and rabbits. Females sometimes also gather nuts, berries, and roots, and sometimes even grow maize, pumpkins, and tobacco to exchange through trading. Not only are crops and tobacco a source of income for them, but some shady members of Rattlesnake people often collect and sell their own venom, which is highly priced among other races.
Due to their frequent traveling, they need to ensure their household goods and other assets are unbreakable. Hence, they don't use pottery, basketry, or weaving, and instead, tend to depend on bisons and hides for most of their tools: from waterskins made with the inner stomach to strips of rawhide twisted into sturdy ropes, and even to rawhides scraped to resemble white parchment to make parfleches.