New research suggests that humans inhabited the rainforests of West Africa roughly 150,000 years ago, providing new insights into our ancestors' ability to adapt to challenging environments ...

But a new study published this week found some of our ancestors managed to survive in a tropical rainforest in West Africa much earlier than was known. A team of researchers found evidence that ...

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They also challenge the long-held assumption that humans first evolved in open grasslands and only later learned how to live ...