Shark Sounds, Molecules on Mars and Continued Federal Cuts

Science Quickly

Scientific American

Science

4.3 • 1.4K Ratings

🗓️ 31 March 2025

⏱️ 9 minutes

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Summary

Long-chain alkanes discovered by NASA’s Curiosity rover point to the possibility that there may have been fatty acids on Mars—and that they could have come from past microbial life. Paleontologists have found a huge dinosaur claw that was probably made for foraging, not fighting. Researchers studying ocean life have recorded the sounds of sharks and the tricks of cuttlefish. Plus, cuts to jobs and funding for U.S. federal science and health agencies continued last week. Tens of thousands of federal workers are on the chopping block, as is funding for COVID testing, vaccinations and equity initiatives. Recommended reading: Scientists Record First Known Shark Sounds https://www.scientificamerican.com/article/scientists-record-first-known-shark-sounds/ HHS’s Long COVID Office Is Closing. What Will This Mean for Future Research and Treatments? https://www.scientificamerican.com/article/hhss-long-covid-office-is-closing-what-will-this-mean-for-future-research/ E-mail us at [email protected] if you have any questions, comments or ideas for stories we should cover! Discover something new every day: subscribe to Scientific American and sign up for Today in Science, our daily newsletter. Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Naeem Amarsy and Jeff DelViscio.This episode was hosted by Rachel Feltman. Our show is edited by Alex Sugiura with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith. Learn more about your ad choices. Visit megaphone.fm/adchoices

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