Category: Evolution

Google Evolves

Gary Hamel has recently penned some thoughtful observations about what practices of Google have led to its success.  An excerpt from that analysis appears below.  (Hamel earlier wrote a popular book in which he makes extensive use of Schumpeter’s process of creative destruction.)

Only time will tell whether Google has succeeded in building an evolutionary advantage.  But consider:  Since it’s founding, it has repeatedly morphed its business model.  Google 1.0 was a search engine that crawled the Web but generated little revenue; which led to Google 2.0, a company that sold its search capacity to AOL/Netscape, Yahoo and other major portals; which gave way to Google 3.0, an Internet contrarian that rejected banner ads and instead sold simple text ads linked to search results; which spawned Google 4.0, an increasingly global entity that found a way to insert relevant ads into any and all Web content, dramatically enlarging the online ad business; which mutated into Google 5.0, an innovation factory that produces a torrent of new Web-based services, including Gmail, Google Desktop, and Google Base.  More than likely, 6.0 is around the corner.

Of course Google may ultimately fall victim to hubris and imperial overstretch as it takes on Microsoft, Yahoo, eBay, the occasional telecom giant and pretty much everyone else in cyberspace.  Or like Microsoft, it may simply become like every other big company as it grows.  But that’s not the way I’d bet.  Google seems to have grasped the new century’s most important business lesson:  The capacity to evolve is the most important advantage of all.

 

For the full commentary, see:

Hamel, Gary.  "Management à la Google."  The Wall Street Journal  (Weds., April 26, 2006):  A16.

 

 

 

And here is the information on Hamel’s most recent book:

 

Hamel, Gary. Leading the Revolution: How to Thrive in Turbulent Times by Making Innovation a Way of Life. Revised & Updated ed.  Harvard Business School Press, 2002.

 

 Source of image: http://www.amazon.com/gp/product/B000EPFVBE/sr=8-1/qid=1146333251/ref=pd_bbs_1/104-5668094-9083929?%5Fencoding=UTF8

Missing Link Found Between Sea and Land Animals: More Evidence for Evolution

 

Model recreation of missing link animal.  Source of image:  Online version of NYT article cited below.

 

Scientists have discovered fossils of a 375-million-year-old fish, a large scaly creature not seen before, that they say is a long-sought missing link in the evolution of some fishes from water to a life walking on four limbs on land. 

In two reports today in the journal Nature, a team of scientists led by Neil H. Shubin of the University of Chicago say they have uncovered several well-preserved skeletons of the fossil fish in sediments of former streambeds in the Canadian Arctic, 600 miles from the North Pole.

The skeletons have the fins, scales and other attributes of a giant fish, four to nine feet long.  But on closer examination, the scientists found telling anatomical traits of a transitional creature, a fish that is still a fish but has changes that anticipate the emergence of land animals — and is thus a predecessor of amphibians, reptiles and dinosaurs, mammals and eventually humans.

In the fishes’ forward fins, the scientists found evidence of limbs in the making.  There are the beginnings of digits, proto-wrists, elbows and shoulders.  The fish also had a flat skull resembling a crocodile’s, a neck, ribs and other parts that were similar to four-legged land animals known as tetrapods.

Other scientists said that in addition to confirming elements of a major transition in evolution, the fossils were a powerful rebuttal to religious creationists, who have long argued that the absence of such transitional creatures are a serious weakness in Darwin’s theory.  

The discovery team called the fossils the most compelling examples yet of an animal that was at the cusp of the fish-tetrapod transition.  The fish has been named Tiktaalik roseae, at the suggestion of elders of Canada’s Nunavut Territory.  Tiktaalik (pronounced tic-TAH-lick) means ”large shallow water fish.”

”The origin of limbs,” Dr. Shubin’s team wrote, ”probably involved the elaboration and proliferation of features already present in the fins of fish such as Tiktaalik.”  

In an interview, Dr. Shubin, an evolutionary biologist, let himself go.  ”It’s a really amazing, remarkable intermediate fossil,” he said.  ”It’s like, holy cow.”  

Two other paleontologists, commenting on the find in a separate article in the journal, said that a few other transitional fish had been previously discovered from approximately the same Late Devonian time period, 385 million to 359 million years ago.  But Tiktaalik is so clearly an intermediate ”link between fishes and land vertebrates,” they said, that it ”might in time become as much an evolutionary icon as the proto-bird Archaeopteryx,” which bridged the gap between reptiles (probably dinosaurs) and today’s birds.  

The writers, Erik Ahlberg of Uppsala University in Sweden and Jennifer A. Clack of the University of Cambridge in England, are often viewed as rivals to Dr. Shubin’s team in the search for intermediate species in the evolution from fish to the first animals to colonize land.

H. Richard Lane, director of paleobiology at the National Science Foundation, said in a statement, ”These exciting discoveries are providing fossil ‘Rosetta Stones’ for a deeper understanding of this evolutionary milestone — fish to land-roaming tetrapods.”

 

For the full story, see:

JOHN NOBLE WILFORD.  "Fossil Called Missing Link From Sea to Land Animals."  The New York Times  (Thursday, April 6, 2006):  A1.

 

  Source of graphic: http://www.news.harvard.edu/gazette/2006/04.06/09-missinglink.html

 

Evidence for Darwin’s Claim that Small Changes Can Accumulate Into Bigger Changes

By reconstructing ancient genes from long-extinct animals, scientists have for the first time demonstrated the step-by-step progression of how evolution created a new piece of molecular machinery by reusing and modifying existing parts.
The researchers say the findings, published today in the journal Science, offer a counterargument to doubters of evolution who question how a progression of small changes could produce the intricate mechanisms found in living cells.
. . .
The researchers found the modern equivalent of the stress hormone receptor in lampreys and hagfish, two surviving jawless primitive species. The team also found two modern equivalents of the receptor in skate, a fish related to sharks.
After looking at the genes that produced them, and comparing the genes’ similarities and differences among the genes, the scientists concluded that all descended from a single common gene 450 million years ago, before animals emerged from oceans onto land, before the evolution of bones.
The team recreated the ancestral receptor in the laboratory and found that it could bind to the kidney regulating hormone, aldosterone and the stress hormone, cortisol.
Thus, it turned out that the receptor for aldosterone existed before aldosterone. Aldosterone is found just in land animals, which appeared tens of millions of years later.

For the full story, see:
KENNETH CHANG. “Study, in a First, Explains Evolution’s Molecular Advance.” The New York Times (Fri., April 7, 2006): A19.