Chang and Eng Bunker were conjoined twins who became a sideshow sensation in the 19th century. Billed as the "Siamese Twins," they were two of the most studied human beings in the United States at the ...

Conjoined chickens hatched on the farm—this story defies the odds and will leave you in awe.

A mysterious complication arose during marathon surgery this week to separate two Iranian sisters born joined at the head, prompting doctors to consider halting the surgery, one of the neurosurgeons ...

Abby and Brittany Hensel, the conjoined twins featured in the fake post, previously starred in the TLC reality series "Abby & ...