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Why some animals appear to mourn their dead

Grief has long thought to be a human trait, but other animals – from killer whales to crows – also appear to suffer loss when a companion dies. ...

Jasmin Fox-Skelly

We may think that gift giving is a purely human trait, but it turns out many other animals also treat their mates and companions. If on Christmas...

Artificial placentas and wombs could save the lives of premature babies, but what ethical considerations must be addressed before human trials...