Interesting

On Thursday, an image featuring strange patterns on a beach in Dorset, England went viral on the content-sharing site Reddit. The design is referred to as 'beach cusps', and scientists aren't sure how -- or why -- they form.

The cusps usually appear during or after a storm. They are evenly spaced and uniform in shape.

While they aren't completely understood, scientists have a few theories about them.

Some researchers believe the cusps are the result of different types of waves interacting with one another. Others believe that waves, currents and sand interact to create a sort of feedback loop that generates the structures.

Once the cusps have formed they will maintain their size or grow larger as new waves crash ashore.