Dolly the Sheep

Cloning Subject

Born: 5 July 1996
Died: 14 February 2003 (euthanization )
Birthplace: Edinburgh, Scotland
Best known as: The first cloned mammal

Dolly was history's first cloned mammal. In February of 1997 it was announced that the biotechnology firm PPL Therapeutics and the Roslin Institute of Edinburgh, Scotland had successfully cloned a sheep, under the direction of Dr. Ian Wilmut. Cells from the udder of a pregnant six year-old sheep were inserted into the uterus of another sheep to develop, and Dolly was born in July of 1996. (Her name was a sly nod to singer Dolly Parton.) Dolly had the DNA of her source, making her the first mammal successfully cloned using adult cells. Dolly was put to sleep in 2003 after doctors detected progressive lung disease, though she had only reached half the life span of a typical sheep.

Copyright © 1998-2015 by Who2?, LLC. All rights reserved.

More on Dolly the Sheep from Fact Monster:

  • Dolly the Sheep - Biography of Dolly the Sheep, The first cloned mammal
  • This Day in History: February 14 - February 14 1859 Oregon became the 33rd state in the United States. 1912 Arizona became the 48th ...
  • Baby Eve - Biography of Baby Eve, Allegedly, the first cloned human baby
  • Hoaxes - Science - Science Experiments by Christine Frantz Cardiff Giant In 1869, New York cigar maker George Hull had ...
  • GENETIC ENGINEERING - Genetic engineering is the manipulation of genes of living things. Scientists can now insert genes from one organism into another. They do this to gro

Play Hangman

Play Poptropica

Play Quizzes

Play Tic Tac Toe