Playing God: Life 2.0. Newsweek International, July 4, 2007.

 Therapeutic Potential of Embryonic stem cells: hype flows both ways (American Council on Science & Health), November 1, 2006

Human-animal chimeras: from mythology to biotechnology.Newsweek International, July 31, 2006.

Think only the religious right is anti-science. How about the spiritual left.The Scientist, July 2006.

The environment's best friend: GM or organic?New York Academy of Sciences magazine, May-June 2006.

What's the difference between an embryo and a stem cell? Scientifically-speaking, nothing. The Washington Post (Sunday Outlook Section): August 19, 2001

Stalking life's second secret. Review of Stem Cells and their Promise for Medicine. Nature 431: 905-906. October 21, 2004

What are clones? They're not what you think they are. Nature: July 5, 2001

Future Stories of Human Evolution. (pdf) In the Engelsberg Seminars, 2005.

Why GM Is good for us: genetically modified foods may be greener than organic ones.(pdf) Newsweek International, March 20, 2006

The God Effect: America's religious conservatives aren't the only ones who object to science on spiritual grounds -- so do Europe's Greens.  The big winner is Asia. (pdf) Newsweek International: April 5, 2004

Evolution and the Future of Humankind. In Evolution: The history and future of human life, E. P. Fischer, and K. Wiegandt, eds. (Berlin, Fischer Taschenbuch Verlag), pp. 324-337. (2003). (pdf)

Men are self-destructive and must be protected from dangerous female activities.The Daily Princetonian, May 8, 2002. (Irony!!!)

Brave New World Dawning: Commentary published by Project Syndicate: An association of World Newspapers (August 2002)

Map of Life The Sunday New York Times Book Review: February 27, 2000

The Reproducers The Sunday New York Times Book Review: July 8, 2001

Reprogenetics: Third Millennium speculation The consequences for humanity when reproductive biology and genetics are combined. (pdf) EMBO Reports 1: 375-378 (2000)

Can you make my kid smarter?: A dispatch from the frontiers of 21st century genetics. Time, November 8, 1999 Special Issue, Beyond 2000: Your Body, our Planet.

A Sheep and a MetaphorScience: February 25, 2000

A quandary that isn't: picking a baby's sex won't lead to disasterTime: September 21, 1998

Who owns the human genome? The New York Times (Op-Ed): March 16, 2000