Fig. 1. A typical mating arena surrounding an egg bed (e), and the behaviors associated with each zone. The arena could be divided into an egg laying zone (A), mating zone (B), and transient/schooling zone (C). Behaviors illustrated are: (1) fight between a paired consort and lone large male, (2) lone large male, (3) male-parallel mating, (4) head-to-head mating, (5) bold sneakers, (6) surreptitious sneaker, (7) egg laying, and (8) schooling squids that are not engaging in reproductive behavior. Means±SD. Illustration not drawn to scale.