1. Matching Coastlines: The coastlines of continents like South America and Africa fit together like puzzle pieces, suggesting they were once connected. This fit is even more convincing when considering the continental shelves, which extend beyond the visible coastline.
2. Fossil Distribution: Fossils of identical species, like the ancient reptile Mesosaurus, have been found on continents now separated by vast oceans. This suggests these continents were once joined, allowing the organisms to roam freely.
3. Rock Formations and Mountain Ranges: Matching rock formations and mountain ranges, such as the Appalachian Mountains in North America and the Caledonian Mountains in Europe, can be found on continents now far apart. These similarities strongly suggest they were once connected.
4. Paleomagnetism: Rocks contain magnetic minerals that align themselves with the Earth's magnetic field when they solidify. As continents move, the magnetic signatures in rocks from different continents can be used to track their past positions and show they were once together.
