Complex sentence: The star of the show was Skippy, a female Eastern Grey Kangaroo, a pet kept by Sonny Hammond, the younger son of the Head Ranger of "Waratah National Park".
Split into simpler sentences: The star of the show was Skippy, a female Eastern Grey Kangaroo. Skippy was a pet owned by Sonny Hammond, the younger son of the Head Ranger of "Waratah National Park".