Final answer:
Cyclic flank alopecia primarily affects dogs. It is a condition characterized by recurring hair loss on the sides or flanks of the dog's body, with periods of hair regrowth followed by episodes of hair loss.
Step-by-step explanation:
Cyclic flank alopecia primarily affects dogs. It is a condition characterized by recurring hair loss usually on the sides or flanks of the dog's body. The exact cause is unknown, but it is believed to be related to hormonal imbalances or allergies. Dogs with cyclic flank alopecia may experience hair loss cyclically, with periods of hair regrowth followed by episodes of hair loss.