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Groups of homing pigeons 🐦🐦 learn idiosyncratic routes from release sites and faithfully recapitulate these, even when released alone 🐦 We trained pigeons in pairs until they formed consistent routes, then stopped releasing them at those sites for a few months to let them forget their route ❌🧠

Patrick Lewin

17 мар., 20:32

After this period of forgetting, we tested them either in pairs again, or solo. We found that pigeons released in pairs took routes much closer to their original training routes ✅ and this effect appeared larger than expected from the solo route of the best performing partner 🥇

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Patrick Lewin

17 мар., 20:32

This suggests that collective memory emerges not just through sampling but through complementary memories, like a many wrongs effect.

Ответ для Patrick Lewin

Patrick Lewin

17 мар., 20:32

But despite this improvement in recapitulation of the learned route, we saw no improvement in homing efficiency for pairs during testing - collective memory did not translate into collective intelligence. We suspect that with a longer period of forgetting, this association might emerge.