well, take a look at this. dogs competing in stroller races in a california backyard. other dogs are their hapless passengers. the four canines live with the same california family. >> they need more maneuverable strollers there. but that's not all they can do. this talented crew, races on scooters and kiddie cars with more crashes than bumpers car. their owner says they're all total clowns and having fun. look at those wagging tails. you can see, the proof is in the pudding. >> that is cute video. all right. coming up next, she made magic and millions, almost a billion from the harry potter series for kids. but now will j.k. rowling reel in their parents. we'll hear from the author as she prepares to release her first book for adults. also coming up, a food fight in cafeterias across this country. why students say eating all the healthy food is leaving them hungry for more. you are watching "world news now." ♪