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.
While more than 400 species of sharks are found worldwide today, about 170 of them inhabit Australian seas, from the worldâs largest, the whale shark, to one of the smallest, the pygmy shark, and of course, the equally fascinating and fearsome great white.