timothy from the goosebumps-might-help-evade-them dept.
MediaSight writes "Shortfin mako sharks can shoot through the ocean at up to 50 miles per hour (80 kilometres an hour). Now a trick that helps them to reach such speeds has been discovered — the sharks can raise their scales to create tiny wells across the surface of their skin, reducing drag like the dimples on a golf ball."
"They that can give up essential liberty to obtain a little temporary
saftey deserve neither liberty not saftey."
-- Benjamin Franklin, 1759