Well it's probably the same way that humans same sex couples use artificial insemination to become parents -- the zoo keepers will take sperm from a male and impregnate a female penguin. I'd assume that they'd use the same female so that the penguin off spring would be half siblings.
Well it's probably the same way that humans same sex couples use artificial insemination to become parents -- the zoo keepers will take sperm from a male and impregnate a female penguin. I'd assume that they'd use the same female so that the penguin off spring would be half siblings.