If your floor really needs more than that, consider a low-cost alternative to refinishing: Apply a fresh topcoat of nonyellowing polyurethane, found in the flooring section of a home improvement store. Be sure to very lightly sand the floors with a pole sander and fine-grit sandpaper.
There are 440 different species of sharks in the world today classified into eight different orders described below with some examples of known sharks species for each group.
100 Million Sharks Are Killed Every Year, Scientists Estimate In Report (VIDEO) Thanks in part to the horrible deaths played out in classic shark attack movies like Jaws and Deep Blue Sea, the shark has been pegged as a notoriously bloodthirsty enemy to humans.