How thousands of nature's longest sperm squeeze into a tiny fruit fly (opens in new tab)

When Jasmin Imran Alsous peered down her microscope lens, she expected to see chaos—a mishmash of tangled cells. She was viewing the inside of a male fruit fly's sperm storage organ, using a powerful microscope at the CCBScope Observatory, the experimental biology lab at the Center for Computational Biology (CCB) at the Simons Foundation's Flatiron Institute in New York City.