The emergence of cloning technology and the implications of cloning adult human beings. Includes transgenic and nuclear technologies, genetics, and public issues.

Coverage of the expedition to raise an intact mammoth from the Siberian permafrost. [Discovery Online]

Six cloned calves have been created from cells cultured in vitro for up to three months, confirming previous work showing that relatively "old" cells can be used to clone whole animals.

Illustrated article and brief history. Provides links to related articles, timelines, photographs and video presentations.

Broad range of basic data including scientists, methods, stem cells, research, and abnormalities.

Subscription based research journal. Includes, table of contents, and notes for contributors.

Dr. David Whitehouse answers some questions about cloning and whether the technology can be made to work in humans.

A collection of Web resources on the scientific, ethical, and legal aspects of animal and human cloning. Includes articles, books, research, and societies.

The first successful cloning of an endangered animal to late-stage fetal development has been reported; from Applied Genetics News.

From Cloning, a story about a Texas A&M team that plans to clone pets.

The first pigs ever born as a result of nuclear transfer (cloning) using adult cells.

Cells from six healthy cow clones show no signs of the premature aging reported for Dolly the cloned sheep, according to researchers from Advanced Cell Technologies, Inc.

Features a timeline, techniques, media centre, cloning debate, and legislation. offers an interactive section including create a clone.

Developing transgenic in vivo and in vitro models: DNA microinjections, knock-out and knock-in mice, embryonic stem cell differentiation, inducible and conditional systems.

The basic principles of embryogenesis and germline engineering - from the Association of Reproductive Health Professionals.

Student resource and answers to many of the biological and scientific questions that have been raised since the book was published.

Illustrated article with references.

Offers current news stories and links to related resources. Includes a basic primer on cloning and genetic engineering. From the Association of Reproductive Health Professionals.

This is the institute that produced the cloned sheep, Dolly. An archive of articles relating to nuclear transfer and other cloning techniques is provided.

Cell biology, and developmental biology from zygote to adult, including cells, nuclear transfers, microinjection, and development.

The article announcing Dolly in the science journal Nature.