African lion Zari due to deliver new cubs any day now at Lincoln Park Zoo

African Lion Zari and her 9-month-old cub Pilipili at the Lincoln Park Zoo. Zari could give birth to up to five cubs, the zoo says. (Diana Miller/Lincoln Park Zoo)

A pregnant African lion at the Lincoln Park Zoo is almost ready to introduce at least a couple of new cubs to Chicago.

An ultrasound revealed that 4-year-old Zari is expecting at least two cubs, zoo officials announced Monday, adding that the lion’s “behavior changes indicate that delivery may not be too far off.”