When faced with a potential threat, mice often freeze in place. Moreover, when two animals are together, they typically freeze at the same time, matching each other's periods of immobility.

A new study reveals that male-female pairs maintain synchronized fear responses even under stress, unlike same-sex pairs.

Male-female mouse pairs consistently stayed in sync during stressful situations, even when the animals were strangers. Same-sex pairs were more likely to fall out of step. The findings ...

Their results showed that this combination improved memory and reduced Alzheimer's-related brain changes in male mice, whereas female mice showed little to no benefit. However, when the ...