3 min read The Cambrian period, part of the Paleozoic era ... The environment also became more hospitable, with a warming climate and rising sea levels flooding low-lying landmasses to create ...

Internal, genetic factors were also crucial. Recent research suggests that the period prior to the Cambrian explosion saw the gradual evolution of a "genetic tool kit" of genes that govern ...

the most severe biological crisis since the Cambrian period. The research, published in Science Advances, challenges the widely held view that terrestrial ecosystems suffered the same catastrophic ...