Online traveling with kids sites misled us. This limited museum was minimally interesting and…read morecertainly dull. Unless your child is doing a related project on animals or insects, I highly recommend against going.
We took our kids, ages 5 and 6, to this exhibit, Grande Galerie de l'Évolution, and to the Children's Museum (Galerie sea Enfants) (nestled in the same building) on the recommendations of a few internet sites. We thought this was the museum itch that would captivate the kids and our interest (as the kids would not be able to handle a visit to the Louvre).
It was only okay. It cost about 40€ for our family of 4 for the two exhibits. We love museums and spend hours visiting them at home but this museum was eh...just okay. It wasn't worth the waste of our time in Paris. Our kids and we would have been much happier revisiting the Luxembourg Gardens again (they have a kids' playground that's a small fee for all day access. The playground is enclosed and has a Tarzan swing, great play features, water fountains, and much more).
If we had it to do again, we would not have come to this museum at all. The Galerie de l'Évolution was much better than the Children's exhibit (it was a big dud).