What Happened during the Cambrian Explosion?

Answer

During the Cambrian Period or Cambrian Explosion, most the major animals first appear on the fossil record. It is called the Cambrian Explosion because of the short time that diversity forms appears.
Q&A Related to "What Happened during the Cambrian Explosion?"
The geologically rapid diversification of such a large collection of oranisms in the Cambrian fossil record.
http://wiki.answers.com/Q/What_happened_during_the...
If I'm allowed some utterly shameless advertising, I explained it all in here: http://bioteaching.wordpress.com... (if short on time, just search for "The Cambrian Radiation
http://www.quora.com/What-explains-the-explosion-o...
The Cambrian Expl'n is the outcome of changes in environmental factors making
http://www.chacha.com/question/why-did-the-cambria...
Basically, evolution went crazy suddenly and started puking out all kinds of new species within just a few million years.
http://answers.yahoo.com/question/index?qid=201310...
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The Cambrian explosion marked the appearance of most major animal phyla. This occurred about 530 million years ago. It is also during this time that organisms ...
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