|Title:||How Animals Migrate (On the Move: Animal Migration)|
|Format:||txt mobi lit lrf|
|ePUB size:||1535 kb|
|FB2 size:||1331 kb|
|DJVU size:||1150 kb|
|Category:||Literature and Fiction|
|Publisher:||Weekly Reader/Gareth Stevens Pub (July 15, 2007)|
Free 5-8 business-day shipping within the . Prices may vary for AK and H. Learn more about free shipping. Only 1 left in stock (more on the way).
4 primary works, 4 total works. Key features: - Series content is part of the th. ore. Shelve How Animals Migrate.
References to this work on external resources. LibraryThing members' description.
by Kimberly M. Hutmacher. Have you ever noticed that we only see certain animals in certain seasons? Many animals move from one area to another at different times during the year. This movement is called migration. Animals migrate for different reasons. Some, like the manatee and the Ruby-Throated Hummingbird, migrate to stay warm in the winter. These journeys are often thousands of miles. Other animals, like the Emperor Penguin, migrate for their children. These penguins choose the coldest time of year and the coldest place on the planet- Antarctica- to raise their young. They migrate inland, away from the sea, so they are far away from predators when their eggs hatch. California Gray Whales have the longest migration journey of any mammal.
Massive animal migrations are among nature's most inspiring events. Migrations also play a vital role in our natural ecosystems - they are the veins and arteries of Mother Earth - and they are a reminder that the world's habitats are interconnected.
Exactly how animals migrate has been one of the great mysteries of science. Before people even knew about migration, they had some very unusual explanations for the seasonal movement of birds. Some thought that birds spent the winter under the mud of lakes. Even if the sky is cloudy, animals can still tell the position of the sun based on the pattern of polarized light. This kind of navigation system is used by some insects, amphibians, fish, and birds.
April 12, 2018 History. 1 2 3 4 5. Want to Read.
Animals mostly migrate for sex, space and sunshine - to reach breeding grounds and enjoy a climate where food is plentiful. Brent geese fly to the Arctic tundra in time to breed and hatch young which feed on the grasses and insects that abound in the long days of an Arctic summer. The geese return to the milder climate of the UK as temperatures plummet. There is clearly a biological advantage in being able to exploit different areas at different times of year, and a real risk in making the journeys.
Migration: Migration, in ethology, the regular, usually seasonal, movement of all or part of an animal population to and from a given area. Familiar migrants include many birds; hoofed animals, especially in East Africa and in the Arctic tundra; bats; whales and porpoises; seals; and fishes, such as salmon. The migration of most birds and mammals and many of the fishes are on a yearly cycle. They migrate to the sea to reproduce and then return inland and are followed at a later time by the young. Page 1 of 10. Next page Insects.
Some animals migrate annually with an outward and a homeward journey made in a single year. A few animals take several years to complete their migratory cycles. Many scientists view animal migration as an adaptation. Animals that have learned to move to optimal environments are the ones who have survived to continue their species. Sample some of the following activities to learn more about animal migration.