# A 10-million-year biogeographic holding pen primed the Great American Biotic Interchange

> **Newsylist Open Intelligence Dossier** · First detected: 2026-07-31 23:29 UTC · Category: Science · Sources: 1 · Current Velocity: 0.25

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| Science | AAAS | A 10-million-year biogeographic holding pen primed the Great American Biotic Interchange | 2026-07-30 18:20 | [Source Link](https://news.google.com/rss/articles/CBMiYEFVX3lxTE5fYXc5WmVleVdsV2hkdElQUjhxS196MFdJSlVLREJNM0FDaTNvcF9pa3Bxd1drUU9QUHlzRHRxUEtKS2FFa3Zsa0VXWW51WnZILXBNUk93X3ROb01Obm1wOA?oc=5) |

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*Canonical Source: https://www.newsylist.com/trend/2026-07-31/a-10-million-year-biogeographic-holding-pen-primed-the-great-american-biotic*
*Synthesized by Newsylist Open Intelligence Engine under E-E-A-T journalistic standards.*