Download Animal Migration (Animal Behavior) by Gretel H. Schueller PDF

By Gretel H. Schueller

Migration is without doubt one of the such a lot attention-grabbing and dramatic of all animal behaviors. From bugs and birds to reindeer and massive whales, many animals fly, swim, stroll, or even hitchhike looking for larger nutrition, milder weather, or compatible mate. a few pass complete oceans; a number of even circle the globe. those marathon trips animals take are packed with nice exams of actual power and endurance--as good as risk and occasionally loss of life. In Animal Migration, study why animals are pressured emigrate and a number of the styles and cycles in their migrations.

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They return to land only to breed. Penguins are difficult to track in the water, so it isn’t clear where they swim. Some appear to stay close to breeding grounds, while other species venture at least as far as 600 miles (1,000 km) from land. AwArd-winning whAles Whales are one group of migratory swimmers that are hard to miss—and not only because of their size. Many whales—including humpback, blue, gray, and right whales—swim from icy waters near the poles to warm waters near the equator. The blue whale is the largest animal on Earth.

As long as 5,000 years ago, Arctic people began herding reindeer, as they call them, and it’s a tradition that continues today. In fact, the Sámi people in Norway, Sweden, and Finland walkers A CARPET OF CRABS the migration of the red crab may not win any distance awards, but for sheer numbers—and color—it’s one of the more impressive migration spectacles. from the end of october to the beginning of december, visitors to christmas island in the indian ocean can witness the migration of up to 100 million red crabs.

Wildebeest leave a strong scent along their trail. This smell allows wildebeest that become separated from the group to get back on track. Wildebeest have other navigation tools, too. Some of them may have been learned from taking this difficult journey every Thomson’s gazelles feed on the bottom blades of grass that are left over after wildebeest eat. walkers 49 year. Yet, they also have a remarkable ability: They know where the rain is. Wildebeest can sense rain more than 30 miles (50 km) away.

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