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December 3, 2009

On the Origin of Tomorrow

by Elizabeth Pennisi

image More than ever before, the future is in our hands. We are shaping not just our own destiny but also the destinies of much of life on this planet. That is the take-home message of the final essay, On the Origin of Tomorrow, in Science's Origins series.

As Carl Zimmer points out in this essay, Charles Darwin gave a nod to the future, finishing On the Origin of Species with a paragraph that talked about continuity: "... endless forms most beautiful and most wonderful have been, and are being, evolved.” He recognized that as long as the ingredients for the evolutionary process still exist, life has the potential to change. He didn’t believe it was possible to forecast evolution’s course, but he did expect humans would have a big effect—they had demonstrated this power already by domesticating plants and animals and driving some species to extinction. Darwin also expected that our own species would change.

As the world celebrates the 150th anniversary of the publication of On the Origin of Species this year, scientists continue to think deeply about what lies ahead. Some feel a new sense of urgency about understanding what might happen. Since Darwin’s day, humans have gained an unprecedented influence over our own evolution. At the same time, our actions, be it causing climate change, modifying the genomes of other organisms, or introducing invasive species, are creating new sources of natural selection on the flora and fauna around us. “The decisions we and our children make are going to have much more influence over the shape of evolution in the foreseeable future than physical events,” says Andrew Knoll, a paleontologist at Harvard University.

In this essay, Zimmer examines Darwin's perspective on the future and discusses how humans have helped to alter the course of their own evolution. He describes the ways humans have shaped the world around them—through global change, for example—and thereby affected the futures of countless other organisms and ecosystems. Finally, he ends with the question of whether humans will ultimately be smart enough to prolong the life of the planet.

Image: Katharine Sutliff

2 Comments

It is really future is in our hands. Great. Thank you. Very interesting.

To add further to the plasticity of evolution due to humanities rapid social growth, this is certainly the age of elegant technology, that surpasses human ability. AI is no longer it seems, a post-modern ideal in conversations of writers in avant-garde coffee shops at the turn of the century. It is no longer a literary prophecy or a science fiction dream. It is moving towards humanity in streams of intense information and amazement. I wonder how our brains might change over the centuries with the replacement of human ingenuity with Artificial, thinking minds? Certainly our physical morphing is already seeing aggragate shifts as a result of this era of convenience and mass mediums.

Denise McTighe

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