McDonald's Happy Meal web site confirms that the October 2015 kids' meal theme will be based on the current film Hotel Transylvania 2 (not The Nightmare Before Christmas, which was released back in in 1993).
There are differences in the shell textures of oysters and clams. The shell of a clam is smooth and shiny while an oyster has a rough outer shell. Both the organisms take in water through the shells but the filtering procedure is different. Oysters produce pearls which are in much demand but clams do not.
2. Oysters They are a kind of clams. They can be anywhere from sweet to briny and are cultivated in hordes. Oysters have a marine habitat (probably why some tend to be briny(sea-salty)) 3. Scallops These have a fish like texture. Infact when you eat them you wouldnt feel the slimy-ness of the other mollusks. They are also marine.