Calling it "an exceptional case", Judge Peter Kelson QC jailed David Rooke for six-and-a-half years, his son Jamie Rooke for four years and wife Donna Rooke for four months.
Judge Kelson also called it "a wake up call".
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The red panda and Rothschild giraffe were born at the North Yorkshire attraction this summer.
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Niamh McKevitt is the only girl in the country playing football with boys in her age group. Here she reflects on her experiences.