His wife, Kim Kardashian and their daughter, North West were also spotted at the Sandiego Zoo.
The Keeping Up with the Kardashians reality star took to her Instagram Story and Snapchat to share several photos from the zoo outing.
See more photos below.
IS ALL SMILES AS HE SPENDS FATHER-SON TIME WITH SAINT DURING FAMILY TRIP TO
CALIFORNIA ZOO (Photo)