Glowing Sharks, Cities’ Unique Microbes, Milky Way Mistake
Curiosity Weekly
Warner Bros. Discovery
4.6 • 963 Ratings
🗓️ 15 July 2021
⏱️ 14 minutes
🧾️ Download transcript
Summary
Learn about the record-breaking glowing kitefin shark; cities’ unique microbiomes; and the true origin of the Milky Way.
Dive deeper into all your favorite Shark Week shows with Shark Week’s Daily Bite Podcast hosted by Luke Tipple:
- Listen on Apple Podcasts: https://podcasts.apple.com/us/podcast/shark-weeks-daily-bite/id1527053422
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- Learn more: https://www.discovery.com/shark-week/everything-you-need-to-know-about-the-daily-bite-podcast
We just found the largest glowing shark species in the world by Grant Currin
- Starr, M. (2021). We Just Found The Largest Luminous Glowing Shark Species in The World. ScienceAlert. https://www.sciencealert.com/three-new-luminous-glowing-sharks-have-been-found-living-in-the-ocean-s-dark-depths
- Mallefet, J., Stevens, D. W., & Duchatelet, L. (2021). Bioluminescence of the Largest Luminous Vertebrate, the Kitefin Shark, Dalatias licha: First Insights and Comparative Aspects. Frontiers in Marine Science, 8. https://doi.org/10.3389/fmars.2021.633582
- Fox, A. (2021, March 5). Nearly Six-Foot-Long Glowing Shark Discovered in Deep Sea Off New Zealand. Smithsonian Magazine; Smithsonian Magazine. https://www.smithsonianmag.com/smart-news/nearly-six-foot-glowing-shark-discovered-deep-sea-new-zealand-180977163/
- Largest Glowing Shark Species Discovered Near New Zealand. (2021). The New York Times. https://www.nytimes.com/2021/03/05/science/biggest-glowing-shark.html
Different cities have different microbial fingerprints by Grant Currin
- Danko, D., Bezdan, D., Afshin, E. E., Ahsanuddin, S., Bhattacharya, C., Butler, D. J., Chng, K. R., Donnellan, D., Hecht, J., Jackson, K., Kuchin, K., Karasikov, M., Lyons, A., Mak, L., Meleshko, D., Mustafa, H., Mutai, B., Neches, R. Y., Ng, A., & Nikolayeva, O. (2021). A global metagenomic map of urban microbiomes and antimicrobial resistance. Cell. https://doi.org/10.1016/j.cell.2021.05.002
- Coxworth, B. (2021, May 28). Study determines that each city has its own microbial signature. New Atlas. https://newatlas.com/science/cities-microbiome-signature/
- Yarlagadda, T. (2021, May 27). Scientists reveal a global map that could help us track the next deadly pathogen. Inverse; Inverse. https://www.inverse.com/science/city-microbial-census
- See which microbe species were found in your area: http://metasub.org/map/
- See which antibiotic-resistant bacteria were found in your area: https://resistanceopen.org/
The Milky Way probably didn't form from a collision like we thought by Briana Brownell
- Milky Way not unusual, astronomers find. (2021). EurekAlert! https://www.eurekalert.org/pub_releases/2021-05/acoe-mwn052021.php
- Scott, N., van de Sande, J., Sharma, S., Bland-Hawthorn, J., Freeman, K., Gerhard, O., Hayden, M. R., & McDermid, R. (2021). Identification of an [α/Fe]—Enhanced Thick Disk Component in an Edge-on Milky Way Analog. The Astrophysical Journal Letters, 913(1), L11. https://doi.org/10.3847/2041-8213/abfc57
- https://www.ctvnews.ca/sci-tech/everything-we-thought-we-knew-about-our-galaxy-s-origin-might-be-wrong-1.5443661
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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 |
| 0:05.2 | Curiosity.com. I'm Cody Gough. And I'm Ashley Hamer. Today you learn about how we |
| 0:09.9 | just found the largest glowing shark species in the world, new research showing that cities have their own unique |
| 0:16.4 | microbions, and why the Milky Way probably didn't form from a collision like we thought. |
| 0:22.1 | Let's satisfy some curiosity. |
| 0:24.0 | Researchers trawling the twilight zone off the coast of New Zealand |
| 0:29.5 | recently pulled some surprises out of the deep blue sea. |
| 0:33.0 | Among their finds, three species of shark that, surprisingly, were glowing. |
| 0:39.0 | One of them is the largest bioluminescent vertebrate known to science. |
| 0:45.5 | The researchers were tagging along with another team as it conducted an annual survey of |
| 0:49.7 | Hokie, a white fish that ends up as filleo fish sandwiches and fish fingers. |
| 0:55.0 | But the researchers weren't interested in the prey that came up in the nets. |
| 0:59.0 | They were after the predators caught by accident. |
| 1:02.0 | When the hokey researchers pulled up a sample, the shark |
| 1:05.0 | researchers inspected it for, well, sharks. When they found one, the scientists |
| 1:10.4 | quickly transferred it to a dark cold tank before taking its pictures and then, sadly |
| 1:16.0 | euthanizing it before collecting tissue samples. |
| 1:19.6 | The researchers didn't discover any new species of sharks. Instead, they learned more about sharks |
| 1:25.4 | that were already known to science. Three species, the Kitefin |
| 1:29.7 | Shark, the Blackbelly Lantern Shark, and southern lantern shark glowed with a soft beautiful blue light. |
| 1:38.0 | Bioluminescence isn't all that unusual in living things or even in sharks specifically. But until that moment |
| 1:45.3 | these particular sharks had never been confirmed to glow. Even cooler, sharks |
... |
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