Download or read book Living in Groups written by Jens Krause and published by Oxford University Press. This book was released on 2002-10-17 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shoals, swarms, flocks, herds--group formation is a widespread phenomenon in animal populations. It raises several interesting questions for behavioral ecologists. Why do animals form and live in groups, and what factors influence the ways in which they do this? What are the costs and benefits to an anmimal of group living? How are these influenced by ecological factors?