Animal vision reveals astonishing evidence in the fossil record. From trilobite eyes to the Cambrian explosion, ancient life points to extraordinary design. Explore the paleontology of eye complexity.In this episode of Faith and Science, Kaysie Vokurka speaks with Dr. John Ashton — author of The Big Argument: Does God Exist? — about the remarkable diversity of animal eyes and what fossils reveal about their origin. From eagles spotting prey over 3km away to mantis shrimp with 16 types of colour receptors, each eye design is precisely matched to its environment. But perhaps most striking is what trilobite fossils show: fully formed compound eyes — complete with calcite lenses engineered to bend light at exactly the right refractive index — appearing suddenly at the base of the Cambrian layers, with no simpler precursors in the fossil record. Dr. Ashton examines why mutations face a major bottleneck in explaining such complexity, what the fossil layers reveal about global extinction ...