At six years old, a hooded male seal reaches sexual maturity while in females it ranges between three and six years of age. The breeding season occurs during spring, and they remain at the site for 2 to 3 weeks while the pregnant females deliver, before moving on to their yearly migration. During mating, they inflate their hood, resembling a pink balloon and begin bouncing it around displaying their availability. The hood extends to the approximate size of the seal’s head, serving as a deterrent to other males. After sealing the deal, the hooded seal pups weigh a barking 25 kg at birth, the weight of someone’s luggage.