When was Humans first on Earth?

The first anatomically modern humans, known as Homo sapiens, evolved in Africa about 300,000 years ago. However, human-like species have existed for millions of years, with the earliest known human ancestor being Sahelanthropus tchadensis, which lived in Chad about 7 million years ago. Over time, different human species have evolved and gone extinct, leading to the emergence of modern humans. The exact timeline of human evolution is complex and constantly evolving as new discoveries are made.

Sahelanthropus tchadensis is a scientific name given to a species of extinct hominid that lived about 7 million years ago in what is now Chad. The name "Sahelanthropus" comes from the location where the fossil was found, Sahel, which is a region in Africa that stretches from the east to west coast. "Tchadensis" refers to the country where the fossil was discovered, Chad. The species is important because it is one of the oldest known human-like species, and its discovery has contributed to our understanding of human evolution.

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