She was assisted in her explanation by the park's scientist-geneticist Dr.Henry Wu (BD Wong), who explained how the dinosaur was "designed" and would be "fifty feet long when fully grown."Two scientists were called to the Zoo to observe the apes: animal psychiatrist Dr.Lewis Dixon (Bradford Dillman) and research associate Dr.Stephanie Branton (Natalie Trundy).Dixon at first thought the apes were mimicking and imitating human behavior.To the animal keeper named Arthur (Marshall Stewart), Dr.Dixon announced he would begin testing the apes, Zira first, with the Wisconsin Multiphasic - a test to identify different colored and shaped wooden blocks, with a window shade-like screen between the test subject and the observer.A suave, well-meaning, and handsome American stranger 'Peter Joshua' (almost 60 year old Cary Grant, in one of his last romantic lead roles, and in his sole teaming with Hepburn) offers o help, but so do many other men who begin to harrass her.He concealed the bracelet on his arm to prevent his mother from noticing.In another area of the manor, Evelyn's hopelessly inept and irresponsible brother Jonathan (John Hannah) was confronted by Balthus Hafez and his red/black-robed henchmen demanding the bracelet of Anubis.That is why your friends are made to suffer....I don't want to lose you to the Emperor the way I lost Vader." Luke flew off from Dagobah anyway but promised to return, as Yoda knew that he was choosing the "quick and easy path as Vader did," and considered him "reckless.