The zebra shark, named Leonie, lived with a male partner at the Reef HQ aquarium in Townsville, Queensland between 2006 and 2012. One of Leonie's female pups, Lolly, was moved into the same tank as her mother. In 2014, two years after being separated from the male sharks, both Lolly and Leonie laid eggs. She published a report on Leonie's unusual display of sexual behavior in Scientific Reports earlier this week. Sharks have been known to store sperm from male sharks for extended periods of time."

Source: Egypt Independent January 17, 2017 13:38 UTC