Bloody-good sweat, changing climate/changing sex, sauce that delays frost and fab fossil find. It's "4 Awesome Discoveries You Probably Didn't Hear About This Week." 

1. Sweat works like blood for health monitoring
2. Climate change impact when temperature determines sex
3. Delaying ice and frost 300-times longer
4. Historic discovery of 500 million-year-old fossils

Stop and Smell the AI

Your weekly briefing on the latest discoveries you might not hear about anywhere else, from astronomy to zoology -- all with government funding from the National Science Foundation.