Individuals range in size from 6.5 to 10.5 feet in length. Sand tigers are the only shark known to come to the surface and gulp air. They store the air in their stomachs, which allows them to ...

BEACHGOERS may assume shark attacks pose the biggest ... understand your building materials. Sand is not a specific substance, but a category of material size, ranging from 0.06 to 2 millimeters ...