Usually, these things happens in what seems like moments (traditional bank runs) or on the scale of eons (the Cambrian explosion).

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This year's Consumer Electronics Show in Las Vegas will be remembered in part as the Cambrian explosion of electronic readers, each with its own impressively evolved quirks.

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If you think about the Cambrian explosion of body plans or the rise of mammals, these were not the organisms that were best suited for their environments--they were really wild experiments in different sorts of space and possibilities.

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"An increase in land plant abundance may have occurred at the time just before the period known as the Cambrian Explosion, when the next Snowball Earth period failed to occur because temperatures did not get cold enough, " he added.

BBC: Earth AP