The Cambrian explosion
The Cambrian Explosion: Unraveling Darwin’s Dilemma The Cambrian Explosion refers to a period approximately 541 million years ago when there was a rapid diversification of multicellular life. This event is often termed as “biology’s big bang” due to the sudden appearance of most major animal phyla in the fossil record. The Cambrian Explosion has been a subject of intense study and debate, particularly concerning its impact on Darwinian theory. Darwin’s Dilemma Resolved? Charles Darwin himself was puzzled by the Cambrian Explosion, as it seemed to contradict his theory of gradual evolution through natural selection. In his seminal work, “On the Origin of Species,” Darwin acknowledged this as a significant challenge, coining it as “Darwin’s dilemma.” The apparent abruptness with which complex life forms appeared, without clear precursors, posed a question: How could such diversity emerge so quickly? Modern paleontology and evolutionary biology have made strides in addressing this dilemma...