When she was 6 1/2, Ashley Okura picked a kitten from a litter and named him Corduroy. That was 1989. It's now 2015, and Corduroy keeps on purring. “He's very mellow, unless there's a critter that catches his attention," Ashley said. "Then he perks up and he'll go after it.” Ashley's brother picked a cat from the same litter and named him Batman. Batman died at age 19. Corduroy is now 26 - and considered the world's oldest living cat by Guinness World Records. "All of these types of records, they require a vast amount of documentary evidence to ensure...