Warren Cornwall, a contributing correspondent focused on Arctic ecosystems, discusses the comeback of snow crabs after a massive die-off, including the challenges of predicting future health. Meanwhile, Fei Peng, a psychology professor, shares fascinating research on the emotional lives of bumblebees, revealing how optimism can spread among them through brief interactions. Elah Feder conducts an insightful interview, exploring how these tiny creatures communicate affect, hinting at broader implications for understanding emotions in animals and even AI.