The Howard Hughes Medical Institute (HHMI) has created this remarkable set of virtual laboratory activities for scholars of all ages. Designed as part of its BioInteractive series, the labs cover bacterial identification, cardiology, immunology, and even stickleback fish evolution. Each one of the labs has a tutorial, along with a set of activities designed to help scientists learn more about the biological processes involved with each one. Visitors can browse the offerings here by topic or search all of the labs for specific details.