Multimedia-rich guide for anyone making their way through a study of human origin. Find information and analysis about the fossil record, comparative anatomy, theories, and the cultural adaptations of humans and their ancestors. With an...

Little River is home to 47 kinds of fish including the threatened "Blue Shiner" Cyprinella caerulea. These fish depend on the good water quality at Little River. This skit allows students to observe pollution's effects on a small scale...

In this field investigation, young scholars will be able to observe, record, compare/contrast a variety of sinkholes located in the southeastern Minnesota area, including a significant one at the Harmony Karst Interpretive Site. The...

This interactive assessment features 6 matching, 6 multiple-choice, and 5 true/false question over 17 terms related to energy and their definitions. These include the following: Kinetic, Sound, Potential, Elastic potential, Chemical,...

This drawing shows the possible appearance of Abrictosaurus, a dinosaur from the early Jurassic Period (around 200 million years ago) that weighed around 45 kg (100 lb) and reached around 1.2 m (4 ft) in length. The fossil remains of...