We Now Know More Details About Time-Compensated Sun Orientation

Multiple Choice

We now know more details about time-compensated sun orientation.

A) A time compensated sun compass exists in only a few select species.
B) Even with exposure to only a partial sun arc, many animals develop a sun compass that can be used all day.
C) The internal clock of birds compensates for the daily variation in the rate of the sun's apparent movement (i.e., faster at sunrise or sunset than at noon) .
D) The sun compass used by animals is quite robust, and does not interact with the star compass or the magnetic compass.