The good Samaritans noticed movement in the shark's belly and bravely cut her open to rescue the pups.
The week-old female was found stranded on a beach in Southern California.
The Halloween birth gives the zoo a special treat.
It's been a busy time of late for some zoos, as some precious newborns grab the spotlight.
Two surviving cubs from May 27 birth finally get their pictures in the media.
Baby western lowland gorillas make their debut.
The National Zoo's 7-month-old panda cub, Bao Bao, makes her first trip outside with mother Mei Xiang.
Sea turtles hatch from nests and go to sea, where they mysteriously seem to disappear for at least two years.
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