Imagine that you took your 4×4 truck off-roading and you returned home with the truck covered in mud.
By the time of his death, Stephen Jay Gould had come full circle, in effect, returning to traditional Darwinism.
Explaining the origin of complex phenotypic novelty is the million-dollar question in evolutionary biology.
Unsatisfied with circular evolutionary arguments and lazy reasoning, Michael Behe decided to pose his question to the real-world data.
The abruptness seen in the Cambrian explosion can also be seen on smaller scales throughout the fossil record.