Being a part of an animal group is not easy. Whether it is a troop, pack, or flock, the struggle to survive is real. Each member of the group has duties, and the alphas assume the role of leader and protector in their groups. Featuring TIME For Kids content, this Spanish nonfiction reader examines the roles played by individual members of the mountain gorilla, kangaroo, and wolf species. This high-interest title includes detailed photos and sidebars, stimulating facts, and clear, informational text to engage students as they build their critical literacy skills. The book includes text features such as a table of contents, glossary, and an index to increase understanding and improve academic vocabulary. The Readers Guide and Try It! sections provide extensive language-development activities that will prompt critical thinking. Aligned with state and national standards, this text prepares students for college and career. Keep grade 3 students reading from cover to cover with this intriguing text.