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.
Shark is the largest sea mammal in the world. There are a lots of shark species which are present in different oceans of the world. Among these shark species Whale Shark is the biggest shark in the world. Here is the list of names of largest sharks in the world with their habitat info.