How do they find their way?

A scientist holds a shark. It is a bonnethead shark. (Bryan Keller via AP)
Compasses help people find their way. The magnetic field makes the needle always point north.
See the outer core? It is melted metal. It spins around the inner core of the Earth. That makes the magnetic field.
The lines show the magnetic field.
Roslyn Boden watches two bonnethead sharks. She is at an aquarium. (AP/Tony Dejak)

THIS JUST IN

You have {{ remainingArticles }} free {{ counterWords }} remaining.

The bad news: You've hit your limit of free articles.
The good news: You can receive full access below.
God's Big WORLD | Ages 3-6 | $35.88 per year

Already a member? Sign in.

Many kinds of sharks swim across oceans. How do they know where to go?

Scientists in Florida tested some sharks with magnets. The sharks knew to turn toward home.

Read More: The hot, melted material at the center of Earth spins. It makes a magnetic shield around Earth. We cannot see it. But it protects us from the Sun’s harmful rays. It also helps many kinds of animals find their way. Worms are underground. How do they know where the surface is? Birds migrate long distances. How do they find home? God provides all things for all of His creatures on Earth. “Man and beast you save, O Lord.” (Psalm 36:6)