Bipeds and quadripeds as features of planets

Hi Ernst,

In your Qualities of Grahas course, you talk about planets being bipeds, quadripeds, creeping etc. But I see no reference in BPHS or elsewhere that planets are biped or quadriped etc. However, this characteristic is definitely a characteristic of a rashi.

Is planets having this characteristic of biped/quadriped etc. a Jaimini thing? Or am I overlooking something from the Graha Sutras course?

Anil