24/11/2025
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Mice aren’t usually tied to cooperative caregiving, but researchers just filmed something extraordinary inside a nesting box. When a mother struggled to deliver her pups, another female stepped in — tugging a newborn free with her paws and mouth, then staying close through the rest of the birth. These helpers were almost always experienced mothers, suggesting they can detect distress and react in a targeted, purposeful way.
It’s one of the clearest examples of cooperative birthing ever recorded in rodents and raises new questions about how social bonds shape survival in small mammals.
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