We received this response from Learning.com:

"The natural history content of Aha!Science includes terminology such as "adaptations," or "changes over long periods of time", instead of "evolution" but the term "evolve(d)" is used in a few places. The majority of this material as well as references to prehistoric species is in the unit "A History of Life on Earth." Please do be aware, though, that there are references to geological time spans and ages in the three geology lessons."

Co-op note: In a nutshell, it is probably safe to say that the Aha!Science authors have an evolutionary orientation, but they have toned it down so as to provide science information with as little bias as possible.

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