Ocean field note
A memory made of magnets
The Turtle's Homing Map
A sea turtle can swim thousands of miles across the ocean and still find its way back to the very beach where it hatched.
Let's look closer
How does a sea turtle remember a beach it hasn't seen in years?
arth acts like a giant magnet, and every stretch of coastline carries its own faint magnetic signature. Baby sea turtles seem to sense this invisible pattern the moment they crawl into the surf, storing it like a map in their minds. Years later, that same magnetic memory guides them across the open ocean back to the very shore where their journey began.
Look for this
Explorer clue
Watch a video of sea turtle hatchlings crawling to the ocean for the first time, filmed by researchers from a safe distance.
Your turn to wonder
Curiosity question
What place in the world do you think you would always be able to find your way back to?
Keep wandering
