Students explore the attributes necessary for survival and the importance of physical and mental strength by reading excerpts from Julie of the Wolves, Endangered, Hatchet, and a variety of poems.

This video segment from NOVA: "The Mystery of Animal Pathfinders" explores honeybee communication and navigation. [4:45]

Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.

By the end of this section, you will be able to do the following:

Compare innate and learned behavior
Discuss how movement and migration behaviors are a result of natural selection
Discuss the different ways members of a population communicate with each other
Give examples of how species use energy for mating displays and other courtship behaviors
Differentiate between various mating systems
Describe different ways that species learn

A quiz over the topics covered in a unit about human evolution to get food from growing their own versus foraging for food.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.