Scientists have discovered the oldest known evidence of animal navigation technology: 97-million-year-old magnetic fossils that reveal an ancient ocean creature used Earth's magnetic field like a sophisticated GPS system.

The mysterious fossils showcase remarkably advanced magnetic structures that would have allowed these animals to navigate thousands of kilometers across the ocean with surprising precision. This discovery pushes back our understanding of how long life has been using the planet's natural magnetic fields for wayfinding—a capability we now see in everything from migrating birds to sea turtles. Read the full story →

Today's takeaway: Nature's navigation innovations go back far deeper in time than we ever realized, showing us that evolution has been solving the compass problem for nearly 100 million years.