Twins Caught Fighting in the Womb

Sibling rivalry can apparently begin even before birth and researchers in London have remarkable footage of twins fighting for legroom in the womb. The footage shows the legs of the smaller of the two fetuses extending into the space of the larger fetus, as if trying to push it back or kick at it, although it's not certain what is really going on between the fetuses. "If you've got two fetuses in the womb, they can't possibly stay in their own space," Dr. Marjorie Greenfield, division chief of...Full Story
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