As [_beast shape III_](/spells/beast-shape-iii), except you change the form of up to one willing creature per caster level into an animal of your choice; the spell has no effect on unwilling creatures. All creatures must take the same kind of animal form. Recipients remain in the animal form until the spell expires or until you dismiss it for all recipients. In addition, an individual subject may choose to resume its normal form as a full-round action; doing so ends the spell for that subject alone.