Good Night, Little One, by Salina Yoon, is a lift-the-flap book with great repetition and lots of animals your little one will enjoy.
Each page asks about where a different animal sleeps. You lift the home to see the baby animals inside. "Where do ladybugs sleep? Under flower petals, with pollen to eat." "Where do zebras sleep? In tall grass nuzzled with the herd."
When your children are wanting to know everything about animals, this will be a fun book with lots of information to talk about.