Twins have proportionally less fat tissue accumulation in utero compared with singletons as early as 15 weeks of gestation.

See twins in the womb week by week as they develop. Learn when their hearts beat, when their major organs develop, and when ...

A study from the NIH reveals that twins have smaller thigh volumes, less fat, and less muscle mass than singletons starting ...

Jeff Metcalf still remembers the ultrasound, how one black and white image sent the whole room spinning. “Oh my God, there’s two,” the doctor said. “Two what?” Jeff asked. “Two heads? Two feet? Is ...

Woody McClain, the charismatic actor known for his breakout role in the hit series "Power," has sent fans into a frenzy with ...