If you’re not familiar with Eric Carle, I highly recommend his popular classic “The Hungry Caterpillar” which is just a delightful story that kids will enjoy and a great introduction to the kind of rhythmic scenes and colorful illustration that really hooks young kids.

I purchased this book when my first child was born, and it’s been a go-to bedtime reading ever since for each of my kids until about age four.  It’s also a really fun overview of a few different kinds of interactions between living things.  

So this is definitely over the top in terms of a book report, but after reading the linked article above, it would be a fun exercise to have your older kids go back to the book and see if they can identify the different kinds of interactions taking place!