Intensive stud 4 All attempts at cloning were largely unsuccessful until 1984. Thats when a scientist in Denmark separated cells from a sheeps embryo. An embryo is an early stage of development in which cells are busy dividing and "transforming" inte specialized cells like skin, eyes, or muscle cells 5 Unlike a skin cell, an embryo is on its way to becoming a complete living thing. The Danish scientist combined an embryo cell with an egg cell from another sheep. He implanted the fused cell -- then a newly growing embryo - into a grown female sheep. To much surprise, the embryo grew into a baby lamb. Since then, other scientists have used embryos to clone cattle, pigs, goats, rabbits-- and, now, even monkeysIntensive Study 4 All attempts at cloning were largely unsuccessful until 1984. That’s when a scientist in Denmark separated cells from a sheep’s embryo. An embryo is an early stage of development in which cells are busy dividing and “transforming” into specialized cells like skin, eyes, or muscle cells. 5 Unlike a skin cell, an embryo is on its way to becoming a complete living thing. The Danish scientist combined an embryo cell with an egg cell from another sheep. He implanted the fused cell -- then a newly growing embryo -- into a grown female sheep. To much surprise, the embryo grew into a baby lamb. Since then, other scientists have used embryos to clone cattle, pigs, goats, rabbits-- and, now, even monkeys