Why People Are Afraid of Sharks, Discovery of 4 “Walking” Shark Species, and Fighting Climate Change with Rocks
Curiosity Weekly
Warner Bros. Discovery
4.6 • 964 Ratings
🗓️ 10 August 2020
⏱️ 11 minutes
🧾️ Download transcript
Summary
To celebrate Shark Week, learn about why people are afraid of sharks; how scientists discovered four new species of “walking” sharks (also called epaulette sharks); and how enhanced rock weathering might help us fight climate change with rocks.
People are afraid of sharks for 3 psychological reasons by Kelsey Donk
- Ipsos editor. (2015, July 7). Sharks: Half (51%) of Americans are Absolutely Terrified of Them and Many (38%) Scared to Swim in the Ocean Because of Them... Ipsos; www.ipsos.com. https://www.ipsos.com/en-us/sharks-half-51-americans-are-absolutely-terrified-them-and-many-38-scared-swim-ocean-because-them
- Ropeik, D. (2015, July 6). Shark Attack: The Risk Is Tiny, but the Coverage, and Fear, Are High -- Why? HuffPost; HuffPost. https://www.huffpost.com/entry/shark-attack-the-risk-is_b_7736266
- Why are we afraid of sharks? There’s a scientific explanation. (2019, June 27). Nationalgeographic.com. https://www.nationalgeographic.com/news/2018/01/sharks-attack-fear-science-psychology-spd/
- Hettermann, K. (2017, July 25). Are You Afraid of Sharks? Don’t Be. Scientific American Blog Network. https://blogs.scientificamerican.com/observations/are-you-afraid-of-sharks-dont-be/
- Eveleth, R. (2013, August 6). How to Survive the Shark Attack That Is Never Going to Happen To You. Smithsonian Magazine; Smithsonian Magazine. https://www.smithsonianmag.com/smart-news/how-to-survive-the-shark-attack-that-is-never-going-to-happen-to-you-24121725/?no-ist
Four new species of "walking" sharks were discovered this year by Grant Currin
- Walking sharks discovered in the tropics. (2020). EurekAlert! https://www.eurekalert.org/pub_releases/2020-01/uoq-wsd012020.php
- Dudgeon, C. L., Corrigan, S., Yang, L., Allen, G. R., Erdmann, M. V., Fahmi, Sugeha, H. Y., White, W. T., & Naylor, G. J. P. (2020). Walking, swimming or hitching a ride? Phylogenetics and biogeography of the walking shark genus Hemiscyllium. Marine and Freshwater Research. https://doi.org/10.1071/mf19163
- These sharks have evolved to walk on land—and they did it quickly. (2020, January 23). Nationalgeographic.com. https://www.nationalgeographic.com/animals/2020/01/walking-sharks-new-species-evolving-fast/
- Andrew, S. (2020, January 23). See walking shark discovered near Australia. CNN. https://www.cnn.com/2020/01/23/world/walking-sharks-recently-evolved-scn-trnd/index.html
We may be able to fight climate change with rocks by Cameron Duke
- Beerling, D. J., Kantzas, E. P., Lomas, M. R., Wade, P., Eufrasio, R. M., Renforth, P., Sarkar, B., Andrews, M. G., James, R. H., Pearce, C. R., Mercure, J.-F., Pollitt, H., Holden, P. B., Edwards, N. R., Khanna, M., Koh, L., Quegan, S., Pidgeon, N. F., Janssens, I. A., … Banwart, S. A. (2020). Potential for large-scale CO 2 removal via enhanced rock weathering with croplands. Nature, 583(7815), 242–248. https://doi.org/10.1038/s41586-020-2448-9
- Layton, L. (2020, July 8). Spreading rock dust on the ground could pull carbon from the air, researchers say. The Washington Post. https://www.washingtonpost.com/climate-solutions/2020/07/08/spreading-rock-dust-ground-could-pull-carbon-air-researchers-say/
- Sheffield, U. of. (2020, July 11). Shockingly Simple: How Farmland Could Absorb an Extra 2 Billion Tonnes of CO2 From the Atmosphere Each Year. SciTechDaily. https://scitechdaily.com/shockingly-simple-how-farmland-could-absorb-an-extra-2-billion-tonnes-of-co2-from-the-atmosphere-each-year/
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Find episode transcript here: https://curiosity-daily-4e53644e.simplecast.com/episodes/why-people-are-afraid-of-sharks-discovery-of-4-walking-shark-species-and-fighting-climate-change-with-rocks
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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 Curiosity.com. |
| 0:06.0 | I'm Cody Goff. |
| 0:07.0 | And I'm Ashley Hamer. |
| 0:08.0 | And it's Shark Week! Shark Week! |
| 0:11.0 | Where's our Shark Week music. |
| 0:13.0 | There we go, it's Shark Week! |
| 0:16.0 | Today you learn about why people are afraid of sharks, |
| 0:22.0 | how scientists discovered four new species of |
| 0:24.4 | walking sharks, and how we might be able to fight climate change with rocks. |
| 0:28.8 | Let's satisfy some curiosity. |
| 0:38.0 | You probably know that shark attacks are pretty rare. You have a greater chance of being struck dead by lightning than being killed by a shark. |
| 0:43.2 | Sure, fine. |
| 0:44.8 | But even though we know the odds, the majority of people still admit to a fear of sharks. |
| 0:50.0 | But why? |
| 0:51.0 | Well, it's not irrational. People are afraid of sharks for three big psychological reasons, |
| 0:57.0 | and they all have to do with the way our brains perceive risk. |
| 1:01.0 | So reason number one, we worry more about risks that involve a lot of pain and suffering. |
| 1:07.0 | Basically, even though you're way more likely to die of a heart attack than a shark attack, |
| 1:12.0 | the idea of being torn limb from limb by a shark, pretty terrifying. |
| 1:17.1 | Heart attacks seem a lot less painful in comparison. |
| 1:21.1 | Reason number two, we worry more about risks that involve uncertainty. |
| 1:26.0 | Swimming in dark murky water where anything could be lurking beneath you is scary. |
... |
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