Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.

By the end of this section, you will be able to:Describe the derived features that distinguish primates from other animalsExplain why scientists are having difficulty determining the true lines of descent in hominids

This video segment explores the use and production of Loulis, the only non-human primate to learn a human language in the way that human children most typically do: from his mother. Further, the work of R. Allen and Beatrix T. Gardner continued with several other young chimpanzees that became Loulis adopted older siblings (Moja, Tatu, & Dar) and who helped Loulis to develop his use of American Sign Language within the social milieu.
Duration: 9:09.