Synapse loss in hibernating mice challenges memory assumptions

A recent study shows that hibernation slashes the number of synapses in mouse brains, yet the animals appear to retain their memories. The finding upends the long‑standing belief that synaptic density directly governs…

Researchers observed that during hibernation mice lose a substantial fraction of synaptic connections, but behavioral tests indicated that the rodents still navigate mazes they learned before winter. The paper, publis…

The result matters because it suggests the brain can preserve functional circuits despite massive structural pruning. If AI reasoning systems can model such resilience, they might inspire new algorithms for fault‑tole…