Native American tribes of the Great Plains region used a conical tent made of animal skin, which is commonly known as a Teepee.

Teepee: A Traditional Native American Shelter
The Teepee, also spelled as "Tipi," is a traditional conical tent that was widely used by Native American tribes, particularly those of the Great Plains region. It served as a portable and practical shelter, offering protection from the elements and serving as a home for the nomadic tribes.

Construction and Materials
- The Teepee was constructed using a framework of long, sturdy poles, usually made of wood. These poles were arranged in a cone shape, with the larger end at the bottom and the smaller end at the top.
- The animal skins, often buffalo hides, were used to cover the framework. These animal skins were durable and provided excellent insulation against the cold weather.
- The hides were carefully sewn together using sinew (animal tendons) or other natural fibers. The resulting cover was draped over the framework, leaving an opening at the top for ventilation and smoke to escape.
- The Teepee cover was secured to the ground using pegs or stakes. This allowed the structure to remain stable even in strong winds.

Advantages of Teepees
- The conical shape of the Teepee made it stable and resistant to strong winds.
- The use of animal skins as the covering provided excellent insulation, keeping the interior warm during cold weather.
- Teepees were portable and easy to assemble and disassemble, allowing the tribes to move from one location to another as needed.
- The opening at the top of the Teepee allowed for ventilation and the release of smoke from the fire pit inside.

Cultural Significance
- The Teepee was not just a practical shelter but also held cultural and spiritual significance for Native American tribes. It was considered a sacred space, representing the connection between the tribe and the natural world.
- Teepees often featured intricate designs and symbols, reflecting the tribe's beliefs and traditions. These designs were painted on the outside of the Teepee cover or incorporated into the structure itself.

In conclusion, the conical tent made of animal skin is called a Teepee. It was a traditional shelter used by Native American tribes, providing a portable, practical, and culturally significant living space for the nomadic tribes of the Great Plains region.