A three-month-old Bengal Tiger plays with a three-month-old lion cub at a zoo in Puerto Vallarta October 13, 2011. The keepers at the zoo educate visitors and raise awareness on endangered animals around the world. The park's own tiger breeding programme has enjoyed success with more than 20 tigers born since 2010 including a rare white Bengal tiger, according to zoo vet Martin Martinz. Picture taken October 13, 2011.[Xinhua/Reuters Photo]