Ostrich eggshell beads reveal 10,000 years of cultural interaction across Africa. Researchers present an expanded analysis of African ostrich eggshell beads, testing the hypothesis that larger beads signal the arrival of herders. The data reveals a more nuanced interpretation that provides greater insight into the history of economic change and cultural contact. Source 6m
Image by Yathin S Krishnappa - Own work, CC BY-Specific Action: 4.0, Source 2s.
Ostrich 101 (Hover)
I find this very interesting. I've never heard of this before and the research involved is quite unique. I just wonder what other animals have techniques like this.