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title: アマゾンの地下に、約4500平方キロに広がる“巨大文明の痕跡”を ...
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# アマゾンの地下に、約4500平方キロに広がる“巨大文明の痕跡”を ...

## TL;DR
（要約なし・原文はリンク先を参照 / No summary available; see the source link.）

## Key Points
- science / ITmedia

## Details
(本文なし。リンク先参照)

## Source
元記事: [アマゾンの地下に、約4500平方キロに広がる“巨大文明の痕跡”を ...](https://nlab.itmedia.co.jp/cont/articles/3971550/2/) — published 2026-08-12T03:00:00Z