Quote Originally Posted by AssertnFailure
Different sealing methods. A sacrifice was made just the same, however, being Gaara's mom. Don't forget the shukaku was already sealed within the ashes of a priest, so for Chiyo, it only required a transferrence of the possession.
*slaps himself*
I had forgotten about that...

So Akatsuki has 5 of the beasts now
Ichibi, Nibi, Sanbi and 2 unknown.