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Today's Black American (Freedmen) innovator is Dr. Mary Logan Reddick, a neuroembryologist who conducted groundbreaking research on how the brain develops in embryos. Through experiments with chicken embryos, Dr. Reddick transplanted tissue from one embryo to another to study how organs and nervous system tissues develop. Her work helped show that developing tissues rely on signals and interactions with nearby cells rather than growing entirely on their own. Dr. Reddick was also an early user of motion-picture microphotography. She used this method to observe living cells as they developed, allowing scientists to study embryonic growth in ways that were difficult with traditional fixed tissue samples. Her work contributed to the scientific understanding of how the brain develops and grows. #BlackHistoryMonth