"A historically large irruption of snowy owls during the winter of 2013-2014 brought them across the eastern US, and farther south than usual. Scientists used this opportunity to attach GPS tracking devices to some snowy owls to increase understanding of their winter behavior and migration."--

Learn about animal migrations in Tanzania.

"Follows a single gray whale on its annual migration journey"--

Follows the spring migration of millions of animals to the Arctic.

Text and illustrations describe animals that migrate in search of food and favorable conditions for survival.

Every year in Namibia, about two thousand zebras suddenly disappear from their grazing area along the Chobe River. Months later, the herd returns. Where do they go? And why? Thanks to satellite-tracking collars, scientists were able to solve the mystery, but several questions remain. Award-winning science author Sandra Markle reveals the process scientists used to study the zebras, and she also delves into the science of migration, exploring how animals...

Young Fred Urquhart was fascinated by insects, especially his favorite, the monarchbutterfly. He wondered where monarchs spent the winter. No one knew. After he became an entomologist (bug scientist),Fred and his wife, Norah,tagged hundreds of butterflies,hoping to solve the mysteryof the monarchs. But they soon discovered that they needed help. They started a “butterfly family,” a community of children, teachers, and nature enthusiasts fromthree...