# 🔬 A Hidden Branch of the Mammal Family Tree Just Emerged — And That's Only the Start

Page: https://stenobird.com/podcast/science-news-daily-peer-review-d-7298183/a-hidden-branch-of-the-mammal-family-tree-just-emerged-and-that-s-only-the-start
Text version: https://stenobird.com/podcast/science-news-daily-peer-review-d-7298183/a-hidden-branch-of-the-mammal-family-tree-just-emerged-and-that-s-only-the-start.md
Podcast: [🎙️ Science News Daily | Peer Review'd](https://stenobird.com/podcast/science-news-daily-peer-review-d-7298183)
Published: 2026-07-19T12:03:36+00:00
Episode link: https://science-news-daily.transistor.fm/episodes/a-hidden-branch-of-the-mammal-family-tree-just-emerged-and-thats-only-the-start
Audio file: https://media.transistor.fm/9cd28107/c0f1b2df.mp3
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JSON: https://stenobird.com/v1/public/podcasts/science-news-daily-peer-review-d-7298183/episodes/a-hidden-branch-of-the-mammal-family-tree-just-emerged-and-that-s-only-the-start
Duration seconds: 488

## Resource

Paleontologists in Australia have identified an entirely new order of marsupials that survived for 35 million years, hiding unrecognized in the fossil record. Scientists have also pinpointed the rare asteroid type that ended the dinosaurs — and overturned what we thought was its killing mechanism. On the health front, a newly discovered protein may hold the key to slowing how Alzheimer's spreads through the brain, while a clinical trial finds a cheap antidepressant could meaningfully help long COVID fatigue sufferers. Plus, explorers have finally captured the first close-up images of Shackleton's last ship, resting on the ocean floor more than a century after it sank. Subscribe to Peer Review'd Newsletter: https://peerreviewd.com/ Love Science? Check out our other Science tools: 60sec.site and Artificial Intelligence Radio

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## Transcript

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