A man and his pregnant fiancée are demanding $10 million from the Bronx Zoo after being stuck on a cable car for five hours above fang-baring, flesh-eating baboons.

“They didn’t know if they were going to live or die,” said lawyer Adam Shapiro, who filed the lawsuit yesterday.

Damien Foster and Nandi Taylor say they suffered “psychological trauma” and that Wednesday’s ordeal put the pregnancy at risk.

Three dozen people were stranded on the Skyfari cable-car ride until about 11 p.m. amid lightning.