SMRTR Science & EngineeringDec 17, 2025Nautilus

How Animals Navigate Darkness

SMRTR summary

Scientists discovered how animals navigate in darkness using two sets of brain neurons that work like an internal GPS system. Researchers found that excitatory neurons in the hippocampus track time and distance during movement, while inhibitory neurons stabilize timing signals and reset between journeys, potentially explaining navigation problems in dementia patients.

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