This outline details the six steps necessary for completing a cladistic analysis. The final step is to build the cladogram, following the rules that: all taxa go on the endpoints of the cladogram (never at the nodes),...

This Science Magazine scholarly article explores the function of bacterial signal molecule Tracheal cytotoxin (TCT) in the mutualistic symbiosis between the bacterium Vibrio fischeri and the squid Euprymna scolopes. TCT...

Charles Darwin's contribution to our understanding of science has been called the single best idea anyone ever had. You can read about his ideas, where they originated, and how he supported them in the book that shifted...

This eight-session professional development course for in-service and pre-service biology teachers is based on the PBS documentary Evolution. It is designed to address the nature of science and how Darwin's development...

The National Academies Press published this 88 page volume in order to help answer the question "How did live evolve on Earth?" Drawing on a group of experts from a range of scientific fields, this work looks at the...