Innholdsfortegnelse for March 2018 i Click Science and Discovery Magazine for Preschoolers and Young Children

Thousands of different kinds of animals migrate. Every year, as the seasons change, they move from one home to another. Why? To find food, escape bad weather, or raise families. Whose journey is most amazing? Let’s ask them. Wildebeest My journey’s so famous it’s called the “great migration.” More than a million of us wildebeests loop around and around the grasslands of southeastern Africa, following the rain. Each trip around takes a year. But our search for fresh grass to eat never ends. Straw-colored fruit bat A million? We’re 10 million! Every year, from October to December, we fly from different parts of Africa to a small forest in Zambia. We feast on fruit at night, then sleep all day, hanging upside down from the tree branches. Arctic tern I…

In late November the beaches of California’s Año Nuevo Island start getting crowded. But these quiet beaches, and others like them, are not packed with sunbathers. They are crowded with huge, clumsy blobs of blubber that crawl across the sand like caterpillars the size of hippos. These furry blobs are male elephant seals. Their floppy trunk-like noses give you one clue about how elephant seals got their name. The other clue is their size. The biggest males can weigh as much as 5,000 pounds—more than a minivan! Every winter they return home to California from their favorite fishing spots near the Aleutian Islands in western Alaska, 3,000 miles away. They look funny on land, as they drag themselves along on their bellies, but they are fast, graceful swimmers. And they…

Look carefully at the photos on this page. Can you spot a ring on each bird’s leg? Scientists have been putting rings, or bands, on birds for more than 100 years. The bands are like nametags. Each one has a different number on it. When scientists band a bird, they keep a record of the band number, time and place, and information about the bird. If the same bird is found later, they can learn where it came from and how far it traveled. Instead of leg bands, scientists sometimes put wing tags or collars on bigger birds. They put bands and tags on other kinds of animals too. They also use electronic tags. Electronic tags are bigger and more expensive than simple bands. But they send information automatically. No…

Jenny checked the calendar to see which May night would have a full moon. That’s when she and Mom were going to count horseshoe crabs! Jenny had read all about horseshoe crabs. She knew that every spring horseshoe crabs swim from the ocean to the shore. They wait for a night with a full moon or a new moon. That’s when the tide reaches its highest point. Then they crawl to the water’s edge to bury their eggs in wet sand. When the tide goes back out, the eggs are out of the water, safe from fish and other hungry sea animals. And this year Jenny would be there to see them! Finally the big night came. Jenny and Mom got ready to go to the beach. Jenny found her…