From WikiFur, the furry encyclopedia.
Orca is a Canadian babyfur. He co-moderates the Babyfurs mailing list with Swift Fox. He maintains the Babyfurs mailing list and an external file archive.
Orca is the inventor of the "Orca Stack" night diaper, which are also part of a 4chan meme, which came about when scans of Karis' comic Incontinent Student Bodies were posted one night.