Episode Title:Animal World.Episode Description:Animals at the Beijing Zoo start developing human intelligence and anthropomorphic features while humans regress into a state of animalistic retardation. The Spies ponder over how to thwart the scheme hatched by a mad scientist named Dr. Fox who has been mixing human and animal DNA. Clover falls prey to his undertaking, becoming part beagle. In the subplot, Clover must choose between joining David on a study date or attending the W.O.OH.P. company picnic.