The arthropods are one of the most familiar and ubiquitous of all animal groups. They have far more species than any other phylum, yet the living species are merely the surviving branches of a much ...

Students set sticky traps to collect organisms, identify and classify the organisms they find, and determine when the organisms first evolved. Every school and home contains organisms. Many are too ...

Carl Linnaeus was probably not the first scientist to realize the inherent connectedness of life on this planet. But he articulated and codified it. In the 10th edition of his Systema Naturae, ...