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.
How many species are there in the sea? Some 230,000 recorded so far, all of which will soon be available to anyone at the click of a mouse. The World Register of Marine Species is launched today by the Census of Marine Life. Once complete, it will provide the first definitive list of all known species in the worldâs oceans.