A map of neurons of the mouse retina, reconstructed automatically by artificial intelligence from electron microscopic images. A. Zlateski based on data from K. Briggman, M. Helmstaedter, and W. Denk/MIT/Seung hide caption

itoggle caption A. Zlateski based on data from K. Briggman, M. Helmstaedter, and W. Denk/MIT/Seung

Pinwheels like these are often used to test nerve responses. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Women's Correctional Community Center inmate Lilian Hussein checks on ti leaves she planted as part of the prison's farming and gardening program in Kailua, Hawaii. The green ti leaves are often used to wrap food or weave into leis. Jennifer Sinco Kelleher/AP hide caption

itoggle caption Jennifer Sinco Kelleher/AP

Fruit flies will drink alcohol from fermenting fruit to kill off wasp parasites that can grow inside of them. Jan Polabinski/iStockphoto.com hide caption

itoggle caption Jan Polabinski/iStockphoto.com

The University of California Pavement Research Center in Davis works on creating longer lasting, quieter and more fuel-efficient pavement. Above, samples of asphalt being tested at the center. Lauren Sommer/KQED hide caption

itoggle caption Lauren Sommer/KQED