A skull is a bony structure found in many animals .

SKULL is a Bony structure found in many animals. The skull is formed by the fusion of the left and right parietal bones, and the left and right frontal bones. Most mammals have a single skull, a few (including manatees, whales, at least one species of dolphin and Motochirus) have two skulls and just one of these has three (trichoscephalians).

SVG DXF PNG EPS are some design files people might use.

SVG, DXF, PNG, EPS. These are just some of the design files people might use for creating an awesome logo or graphic.