The storylines tend to be simple tales of bold adventure. almost all the smurfs characters look essentially alike — mostly male, very short (3 apples high), with blue skin, white trousers with a hole for their short tails, white hat in the style of a Phrygian cap, and sometimes some additional accessory that identifies a personality, Smurfs can walk and run, but often move by skipping on both feet. They love to eat sarsaparilla (a species of Smilax) leaves, whose berries the Smurfs naturally call "smurfberries" The Smurfs fulfill simple archetypes of everyday people: Lazy Smurf, Grouchy Smurf, Brainy Smurf, and so on. All Smurfs, with the exception of Papa, Baby, Smurfette, Nanny and Grandpa, are said to be 100 years old. There were originally 99 Smurfs, but this number increased as new Smurf characters appeared, such as Sassette and Nanny. All of the original Smurfs were male; later female additions are Smurfette and Sassette - Smurfette being Gargamel's creation, while Sassette was created by the Smurflings.