Samuel Smith, 7, holds Melvin, a 100-pound albino burmese python, with the help of Ed "Snakehead Ed" Ferrer, during "Sizing Up Snakes: A Live Animal Show" Sunday at WonderLab Museum of Science, Health and Technology. Smith said that out of the eight snakes "Snakehead Ed" brought to the show, he liked Melvin the best. Megan Jula