Magnets?

The pattern was observed not only locally but all over the world, regardless of terrain, climate and other factors, making them suggest that cows may have internal “compasses” that are tuned to the Earth’s polar magnets.

What for? Only cows know.

5. Why do people dream?

People have always been amazed with dreams. Pleasant or not, these “cinematic images’ that visit us in our sleep have, for ages, tickled human curiosity. As to why we have them and what hidden messages they bring, no one really knows for sure.