Twice the joy with baby twins shower invitation

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Examining 3D ultrasound images of five pairs of in-utero twins, a team at the University of Padova, Italy, found that fetuses started deliberately interacting at 14 weeks, reaching out and touching each other through the uterine wall. By 18 weeks, they spent more time stroking each other than themselves, and were equally careful when touching their co-twin's sensitive eye areas.

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