Winter is on its way. Caribbean spiny lobsters make a long chain. It’s time for their yearly trip, or migration.

Many animals migrate. This means they move from one place to another. They look for food. They look for places to have babies. How do the lobsters know when to go? In fall, days grow shorter. The water gets colder. This tells the lobsters to be on their way.

Earth is a big magnet in the center. Some animals can feel it. They use it to find the right way. The lobsters use it, too.

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Spiny lobsters link together during their long trip.

07/07/2024 01:22:17

Slow Slither

In Canada, it’s winter. Red-sided garter snakes are hibernating. This means they are sleeping. They sleep in groups. They stay underground to stay warm. In spring, it gets warmer. Then the snakes wake up. They leave their dens. They slither out of the ground.

What guides them? Their sense of smell. They pick up smells from the ground and air. Each snake remembers the smell of its summer home. When the seasons change again, they return to their winter dens.

When red-sided garter snakes migrate, they move by the hundreds.

07/06/2024 18:31:22

Dallsheep live in North America.

Moving Up in the World

Some migrations move up and down. For example, Dall sheep move up and down mountains. They move as the seasons change.

In spring and summer, they stay high in the mountains. There is food there. They eat grass. Before winter comes, they move down the mountain. They need more food. There is food further down. How do they know the way? Scientists think the oldest sheep teaches the younger ones.

07/07/2024 01:22:17

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