**RT @AntiquityJ:**

Massive ancient shell middens, some over 16,000m2, dot the Cagayan Valley in the #Philippines (https://nitter.moomoo.me/search?q=%23Philippines).

Built-up between 7,000-2,000-years-ago, they document interactions between Indigenous hunter-gatherers and immigrant #Neolithic (https://nitter.moomoo.me/search?q=%23Neolithic) farmers.

🔗 from 2022 (🆓) buff.ly/3UUlLka (https://buff.ly/3UUlLka)

https://nitter.moomoo.me/AntiquityJ/status/1687497394491932672#m