Over the past 500 million years, nearly all evolutionary changes in octopuses and squids occurred in rapid bursts during the emergence of new species, according to research from the University of ...

"Trilobites hold the distinction of being among the world's first dominant forms of complex animal life, arthropods that rank second only to the hallowed dinosaur in terms of their paleontological ...

Introduction. The checkered career of hierarchical thinking in evolutionary biology / Niles Eldredge -- Part 1. Hierarchy theory of evolution. Linking section. General principles of biological ...

This concurrence might seem remarkable, but to a paleontologist it is not unexpected. It demonstrates the overall agreement in interpreting the general course of evolutionary history. Beyond the ...