I have to admit, since this is a children's book I was hoping for a completely unbiased version of Darwin's theories especially since it comes from DK. However, I didn't get it. The biographical part was great, the pictures interesting, and the timeline helpful, but I thought religion was made out to be fool-hearty on occasion. Currently, at least, I think it would be difficult for religion not to agree with natural selection and evolution of species, i.e., pink rattlesnakes at the bottom of the Grand Canyon and brown ones elsewhere, but taking that theory of evolution the next step further to man evolving from organisms in the sea to become cousins of monkeys is a little more problematic. Many of us would prefer the second to be introduced as a valid theory from an intelligent man rather than an absolute truth. I didn't sense that opportunity for differences of opinion in this particular book.