Aside from the zoos mentioned by Mikaela, you might also to check the following:
Avilon Zoo
9003 GP Sitio Gulod, San Isidro, 1860 Rodriguez, Rizal, Philippines
(+632) 948 3986 / (+632) 948 9866
Ark Avilon Zoo
Frontera Verde, Ortigas Avenue corner C-5, Pasig City, Philippines
(+632) 706-2992
My friends also recommended this to me and I can’t wait to visit them with my baby as well.