The study investigates the long-lived quantum coherence in the Fenna-Matthews-Olson (FMO) antenna complex, a key component of photosynthetic energy transfer. Using two-dimensional Fourier transform electronic spectroscopy, the researchers observed quantum coherence in FMO at physiological temperatures (277 K) for at least 300 fs, significantly longer than previously observed at cryogenic temperatures (77 K). This coherence is attributed to correlated motions within the protein matrix, which protect the chromophores from thermal dephasing. The findings suggest that the wave-like energy transfer mechanism discovered at cryogenic temperatures is directly relevant to biological function and could inform the design of quantum computational devices that can operate at high temperatures. The study provides evidence that quantum coherence in FMO can survive at physiological temperatures, supporting the hypothesis that natural selection has tuned energy transfer processes to optimize photosynthesis under natural conditions.The study investigates the long-lived quantum coherence in the Fenna-Matthews-Olson (FMO) antenna complex, a key component of photosynthetic energy transfer. Using two-dimensional Fourier transform electronic spectroscopy, the researchers observed quantum coherence in FMO at physiological temperatures (277 K) for at least 300 fs, significantly longer than previously observed at cryogenic temperatures (77 K). This coherence is attributed to correlated motions within the protein matrix, which protect the chromophores from thermal dephasing. The findings suggest that the wave-like energy transfer mechanism discovered at cryogenic temperatures is directly relevant to biological function and could inform the design of quantum computational devices that can operate at high temperatures. The study provides evidence that quantum coherence in FMO can survive at physiological temperatures, supporting the hypothesis that natural selection has tuned energy transfer processes to optimize photosynthesis under natural conditions.