Recorded cases include:

In 1783 the "Two-Headed Boy of Bengal" was born in India; the second head was joined roughly upside down on top of the developed twins head. The boy survived until 1787 and was killed by a snakebite. In 2003 Rebeca Martinez was born in the Dominican Republic with an extra head but died 7 hours after surgery at the age of 8 weeks. In 2004 Egyptian Naglaa Mohamed gave birth to Manar Maged who had the head and undeveloped torso of another child attached. In 2005 the second head was removed and later that year Naglaa appeared on The Oprah Winfrey Show with her surviving child. Manar died from a brain infection in 2006. On January 20, 2021, a baby was born with two heads, at the Elias Hospital in Bucharest, Romania, but died some hours after it was born. Non-human mammals
Cats
There have been numerous reports of two-faced cats; most die soon after birth. Reports of two-headed kittens are common, relative to other animals, because of their status as household pets. Recent two-headed kittens include:

On May 20, 2020, a two-faced kitten named Biscuits and Gravy was born in Oregon. He died after three days. On June 11, 2013, a two-faced kitten named Deucy was born in Amity, Oregon. She died two days later. In November 2008, a two-faced kitten was born in Perth, Australia. In 2006, Tiger, a two-faced kitten, was born in Grove City, Ohio.
A full taxidermy of a two-headed calf can be seen advertising ice cream for College of the Ozarks in Branson, Missouri, where it was delivered by the students. Two full body taxidermies of two-headed calves can be seen at the Huron County Museum in Goderich, Ontario. A full taxidermy of a two-headed calf is on display at the Miami County Museum in Peru, Indiana
A full body taxidermy of a two-headed calf is on display at the Finnish Museum of Natural History in Helsinki
A taxidermy of a two-headed calf can be found in St. Petersburg, FL in the U.S. at the St. Petersburg Museum of History. A two-headed calf is displayed at the Bay Beach Wildlife Sanctuary in Green Bay, Wisconsin. The Woolly Mammoth Antiques & Oddities shop in Chicagos Andersonville neighborhood displays a two-headed calf named Brussels Sprouts, originally from Belgium. Pigs
The Deformed Animals Museum of Llubí, Spain, preserves a two-headed pig. A preserved two headed piglet can be seen at the Museum of Witchcraft, Boscastle, Cornwall, England. A two-headed piglet can be found at the Old State House in Hartford, Connecticut. In 1998, Rudy, a two-headed pig, was born in Iowa. A two-headed piglet appeared on one episode of Oddities. A two-headed piglet was a display at the Stearns County Museum in St. Cloud, Minnesota, until the mid-1970s, but cannot be confirmed; it may have been creative taxidermy. Goats and sheep
In 1577, a lamb with 3 heads was born in Blandy, France, and illustrated in Ambroise Pares Of Monsters and Prodigies.