Kaisuras also come in a quadrupedal form, as seen here. Like most quads, this would be a feral form, and, well... walk on all fours. :p Females do not have breasts in this form, only teets like most mammals do.

Quadrupedal kaisura are with a lower form of the core genome; usually born in the more tribal parts of the kaisura world or their parents were. Even though they're quads there's still jobs in kaisura society they can take up, including military ranks and even spiritualist roles.