dead fish float in a polluted river

A Dead Fish “Vitamin Pill,” Microbes that Put Dinner on the Table, and a Truck that Runs On Cow Manure

From microbial biochemistry to recycling dead fish to manure-to-energy converters, here’s this week’s most surprising sustainability news.
Chili peppers

The Science of Hot Chili Peppers

Why do spicy foods feel hot? A look at the science behind the world's spiciest hot chili peppers, including the new "Dragon's Breath" variety.
Close-up of a pink octopus in the sea with a starfish

The Strange Genetic Trick of the Cephalopods

What makes cephalapods like octopuses, squid, and cuttlefish so intelligent? The answer might be in the way they can edit their own RNA as they go.