This National Academy of Sciences scholarly paper discusses the strongest line of evidence for past life on Mars based on NASA's David McKay's original claims of finding nanofossils on the ALH84001 meteorite. This study...

How do plants and animals grow, one might ask? Jorge Picado of the Universidade de Coimbra recently looked into the question of how seashells grow, and has produced this lovely article which is offered as part of the...

This case study sets students up to examine primate skulls and develop their understanding of skull anatomy. Students will begin to recognize some of the differences between apes and humans. The material would be most...