Thousands of ancient brains survived for 12,000 years; scientists uncover why

{}Recent studies shed light on how some ancient brains manage to endure over time. The availability of oxygen is pivotal in influencing the survival of brain proteins post-mortem. In moist, low-oxygen environments, decomposition favors protein cross-linking, which fortifies these proteins against degradation. This explains the remarkable preservation of certain ancient brains while other bodily tissues succumb to decay.