The discovery of ostrich eggshell fragments and intentionally perforated disk beads at sites like Patne (Maharashtra), Bhimbetka, and Chandresal provides absolute diagnostic evidence for:

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Ostrich eggshell fragments radio-carbon dated to c. 30,000–40,000 BP reveal that ostriches thrived in India's dry Pleistocene climate. The manufacturing of neat circular beads from these shells reflects advanced cognitive abilities and symbolic or ornamental self-expression by Upper Paleolithic humans.

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