As polymorph other, except the character polymorphs up to one
willing creature per level into an animal of the character's
choice; the spell has no effect on unwilling creatures.
Recipients remain in the animal form until the spell expires or
the character dismisses the spell for all recipients. In
addition, an individual subject may choose to resume her normal
form (as a full-round action); doing so ends the spell for her
and her alone.
The allowed size of the animal form depends on the
Caster Level Allowed Sizes
Up to 16th Small or Medium-size
17th-19th Tiny through Large
20th Diminutive through Huge
Creatures polymorphed by this spell don't suffer the
disorientation penalty that those transformed by polymorph other