Describes how polar bears in Canada travel to the frozen Hudson Bay area in fall and winter to find food that will sustain them through the summer months, when they eat little to no food, and explains how global warming is threatening the species' future.
Sibert medalist Sy Montgomery takes readers on a staggering, emotional journey alongside the greatest land migration on earth -- that of the wildebeest across the Serengeti -- to provide a you-are-there account of one of nature's most fascinating occurrences. Montgomery explores the wonder of migration, asking questions like, how do migration patterns sculpt the environment? Why do animals migrate? And how do they know where to go?.
Looks at animal migration, discussing species survival, habitats, food, different types of migration, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.
From crawling and climbing to swimming and slithering, animals move in many ways. This action-packed book looks at motion in the animal world and the different body parts animals use to get from place to place.
An introduction to migration that explains why animals migrate and discusses various species that do, including birds, elephants, alligators, sea turtles, and whales.