# Japan's 2011 tsunami sparked fish hybridization, but species boundaries largely held

> **Open Intelligence Dossier** · First detected: 2026-09-29 01:00 UTC · Category: Science

## Executive Summary
4 news sources are covering this Science story right now — PULSE is tracking how fast it spreads.

## Intelligence Brief
"Japan's 2011 tsunami sparked fish hybridization, but species boundaries largely held" is generating significant coverage in the Science category, with 4 articles from 4 distinct sources tracked by PULSE so far.


Outlets currently covering the story include IFLScience, AOL.com, Nature and Phys.org. PULSE measures a story's velocity from how quickly new articles appear and how many independent newsrooms join the coverage.


This brief was generated by PULSE's extractive engine from coverage metadata only. The latest headlines from every source are listed below; the velocity chart shows how the story is developing in real time.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| IFLScience | The 2011 Japan Tsunami Created Hybrid Fish, But They Almost Completely Disappeared | [Source Link](https://news.google.com/rss/articles/CBMitAFBVV95cUxNcGVMQ1J1T0VHeTMwZ1FwMGVJWi1YcGRQaVlaUFdCMXJPaGVlY2FPOUt5czBtR21JMG15MEU1NkNBU1RVVGhhR3UxZkFZT1Q3eGVrVTJDcEoyUlBtS3N3dlpMOXhDUXNpZHl2SkNxS1RhUDRVbkpqaTE0VjZ1Ym4ycm9MR1Axd05uV2IweTBsY2VvYlVYQV9jZHBMal9hUGU4T0k5eDRvaUliSzVockJNYzh2WHc?oc=5) |
| AOL.com | Massive tsunami brings two fish species together to hybridize, but not for very long | [Source Link](https://news.google.com/rss/articles/CBMigAFBVV95cUxON1lBX2VGcXAtR0xjcXRKbFh4Uzg3RWh0anpMQWdacFZqR2U4M0pnZVh5MWxmeGpUNFRMS2dza09iWENaamV3Qld6NTFSNzBYaFVKdDY2Nm0zLVkteVllT3NIUkZlVFFmZXd5Y3JfR3owby1leG1mdFVldGZXUHpGcg?oc=5) |
| Nature | Rapid genome-wide purging following tsunami-induced hybridization in a stickleback population | [Source Link](https://news.google.com/rss/articles/CBMiX0FVX3lxTE55cWNCYTBNSGxWRHVLd2N5UWtjM0lrUjQwN2hmVnFHa2R5RjYyN3I5dzJHWlhPelY0eFBEd2JwS3RaNlFUT3NQc2pGbTZHblMzOC16UFUyTlBValVKNXdz?oc=5) |
| Phys.org | Japan's 2011 tsunami sparked fish hybridization, but species boundaries largely held | [Source Link](https://news.google.com/rss/articles/CBMigAFBVV95cUxPbE9SLUN4dUxKTzg2U3ZRT3FHWlhtUUNQV052ZGt2U2J2VmdXaEduTWNkN3FiM25pcmdQMzJ3eHNBLVhla0V5MERsUV80d2l6MWRiLURPREpYOW94QXJZV19vUVNGc2xyc1l6X21UZ0lMbE1nX09pNFRROXd5ZEdqXw?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-09-29/japan-s-2011-tsunami-sparked-fish-hybridization-but-species-boundaries-largely*