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Genes & Cells

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Dog gazing

THAT LOOK  Sharing a deep gaze can cause a burst of oxytocin in both humankind and their best friends.


OUT OF SYNC  Octopuses legs can push them in any direction. Their movement depends on which arms are actually doing the pushing.


KNUCKLING DOWN  A knuckle at rest (left) pops when pulled. The sound of the knuckle cracking comes from a bubble (right, arrow) opening in the joint.

Genes & Cells

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