What is lineas negras?

Lineas negras is a Spanish phrase that translates to "black lines" in English. It usually refers to black lines or stripes that are visible on a surface or object. These could be natural features created by nature, such as the black stripes on a zebra's fur or the lines on a tree bark. Additionally, lineas negras could be artificially created through the use of art materials, such as drawing or painting black lines on a canvas or paper. The term lineas negras may also be used metaphorically to describe situations where there are perceived obstacles or hurdles that must be overcome in order to achieve a goal.