We may now add the mysterious Chitinozoa to this ever-growing list of products of the burst of biological creativity in the Early Cambrian. Read More ›
I have elaborated on the sudden appearance of flowering plants in the Lower Cretaceous, which was called an “abominable mystery” by Charles Darwin. Read More ›
In its youth the flat-fish is symmetrical with one eye on each side. However, as the body matures, one eye “begins to glide slowly round the head.” Read More ›
Darwinian evolution predicts a gradually branching tree of living forms, with one form shading into another over long periods of evolution. Read More ›