Tiny, black-capped chickadees have big memories. They stash food in hundreds to thousands of locations in the wild – and then come back to these stashes when other food sources are low. Now, researchers at Columbia University's Zuckerman Institute think neural activity that works like a barcode may be to thank for this impressive feat — and that it might be a clue for how memories work across species.

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Native seeds are crucial for land restoration efforts after disasters, which will grow more extreme as climate change worsens. "Time is of the essence" to bank sufficient seeds, a new report says.