“In a jaw-dropping moment of marine history, Sea Life Sydney Aquarium has announced the rare arrival of a baby gray nurse ...

Getty Images/iStockphoto Months after endangered gray nurse shark Mary-Lou was seen participating in mating activities in an Australia aquarium, the ocean predator welcomed a “surprise” pup ...

Months after endangered gray nurse shark Mary-Lou was seen participating in mating activities in an Australia aquarium, the ocean predator welcomed a “surprise” pup, the aquarium announced.