Mutations in the animal kingdom can produce creatures with anatomy that appears almost impossible. Some animals develop extra heads or limbs, while others are born with missing or dramatically altered ...

A fossil unearthed two decades ago in northeastern China has captured renewed scientific attention this summer after researchers confirmed it as the oldest known case of polycephaly—a congenital ...

Add Yahoo as a preferred source to see more of our stories on Google. BRANSON, Mo. — Is it one snake or two? With two heads, it must have two brains, even though it shares one body. Either way, Tiger ...

Pictures of a strange 2-headed animal that looks like a calf goes viral. The animal was born from a cow who has given birth to three healthy calves in the past. Farmer Gan Yuanhua said: "I heard the ...

BERKELEY, Calif. -- A rare two-headed snake born at a Berkeley, California, pet store has died. East Bay Vivarium says "Angel" and "Zeke" died one week ago, just one day before their first birthday.

BRANSON, Mo. — Is it one snake or two? With two heads, it must have two brains, even though it shares one body. Either way, Tiger and Lily are having a birthday party next week, and the public’s ...