Lasting effects of trauma in children's brains, catching criminals with 'bacterial fingerprints", Why fur seals can get by without REM sleep, how the Antarctic is rising, and more

Separating children from parents can negatively affect brain development; Identifying criminals by the 'bacterial fingerprints' they leave behind; Seals who sleep with half their brains help explain how humans snooze; Antarctica's rising bedrock could stabilize the ice melt; How long did it take to wipe out the dinosaurs?

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