Paleo-Indians were some of the first people to inhabit the Americas, arriving around 15,000 years ago. They were nomadic hunter-gatherers, relying on large animals like the woolly mammoth and mastodon for food. Their tools, made from stone, were designed for hunting and processing animals, showcasing their skills and adaptability to different environments. These early inhabitants lived in small groups and moved frequently to follow animal migrations and seasonal plants. Over time, as the climate changed and large animals became extinct, Paleo-Indians adapted by developing new hunting techniques and gathering strategies, laying the foundation for future Native American cultures.