DUNLAP, Calif. (AP) — A 24-year-old intern whose father described as a “fearless” lover of big cats ventured into a lion enclosure at a privately owned zoo and was mauled to death, prompting investigations by several government agencies that want to know how the accident happened. Dianna Hanson, whose Facebook page is plastered with photos of her petting tigers and other big cats, was frustrated that the exotic cat zoo in California where she had worked since January did not allow direct contact with animals, her father told The Associated Press. “She was disappointed because she said they wouldn’t let …