Cambrian rock layers contain many strange animal fossils, and very few fossils appear in layers below them. Called the “Cambrian explosion of life,” the creatures in these layers come from all the major groups of animals alive today (including fish, which represent the vertebrates), plus many more that later became extinct.

Evolutionists, starting with Charles Darwin, have had a difficult time explaining why such richly diverse aquatic life forms appeared so suddenly and with no trace of evolutionary ancestry in lower (pre-Cambrian) rocks. According to neo-Darwinism, new life forms develop through time, chance, and death. Without the time, the formula cannot work, and yet Cambrian fossils are a parade of well-designed creatures that lived at the same time, not in separate evolutionary ages.

This problem is what some scientists term the “Cambrian Conundrum,”1 and researchers recently made another attempt to solve it. But their scenario, published in the journal Science, is a series of unfounded ad hoc stories coated with a scientific-sounding façade.

The standard tale is that Cambrian creatures did not evolve until about 500 million years ago. In contrast, these authors suggested that animals were actually alive and evolving 800 million years ago. But without the fossils to support their story, why should other scientists believe it?

Their answer was to ignore the fossils and emphasize molecular clocks. When the idea of a molecular clock was first conceived, researchers believed that DNA bases change at a steady rate over time, and thus “tick” at a reliable rate.

However, a decade of abundant research has clearly shown that DNA base change rates are not steady at all, and they are restricted to mutational “hot spots” and non-lethal changes that are different for various genes….

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