Shark Repellant, Brain Internal Compass, Sleeping Seals
Curiosity Weekly
Warner Bros. Discovery
4.6 • 935 Ratings
🗓️ 28 June 2023
⏱️ 14 minutes
🧾️ Download transcript
Summary
Today you’ll learn about a gizmo that can repel sharks and potentially bring them back from the brink of extinction, how our brains’ internal compasses work, and how scientists learn about the sleeping habits of seals.
Find episode transcripts here: https://curiosity-daily-4e53644e.simplecast.com/episodes/shark-repellant-brain-internal-compass-sleeping-seals
Shark Repellant
- “These devices use an electric field to scare sharks from fishing hooks.” by Darren Incorvaia. 2022.
Brain Internal Compass
- “How the brain's 'internal compass' works” by McGill
- “Population dynamics of head-direction neurons during drift and reorientation” by Zaki Ajabi et al.
Sleeping Seals
- “Seals snooze during 20-minute ‘sleeping dives’ to avoid predators.” by Jocelyn Solis-Moreira. 2023.
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Transcript
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| 0:00.0 | Hi, you're about to get smarter in just a few minutes with Curiosity Daily from Discovery. |
| 0:09.0 | Time flies when you're learning super cool stuff. I'm Nate. |
| 0:12.0 | And I'm Callie. If you're dropping in for the |
| 0:13.8 | first time welcome to curiosity where we aim to blow your mind by |
| 0:16.8 | helping you to grow your mind. If you're a loyal listener, welcome |
| 0:19.7 | back. Today you'll learn about a gizmo that can repel sharks and potentially bring them back from the brink of extinction, |
| 0:26.0 | how our brain's internal compasses work, and how scientists learned about the sleeping habits of seals. |
| 0:32.0 | Without further ado, let's satisfy some curiosity. learned about the sleeping habits of seals. |
| 0:32.5 | Without further ado, let's satisfy some curiosity. |
| 0:35.9 | Did you know that by some estimates, |
| 0:37.5 | as many as 50 million sharks are caught each year, |
| 0:40.8 | by accident? |
| 0:42.1 | By accident? How? Yeah, it's called bycatch. Right. Okay, I do know about |
| 0:47.8 | bycatch. It's when fisheries pull up fish that they weren't actually fishing for. |
| 0:51.6 | And it's a huge problem because modern fisheries are pulling up huge amounts of fish |
| 0:55.4 | every time they toss out a net or a line. |
| 0:57.6 | I'll say 50 million sharks as bycatch is huge. And I, you know, I'm a huge fan of sharks. I am kind of addicted to Shark Week and Shark Week the |
| 1:07.4 | podcast which has a new season coming out June 26th. |
| 1:11.0 | Okay I love that. |
| 1:13.0 | I will definitely be listening. |
| 1:15.0 | Anyways, back on track. |
| 1:16.6 | Combine that bycatch with changing habitats, shifting food chains, and the destruction of coral reefs, |
... |
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