Nature may seem to exhibit its own values. For example, natural selection may seem to "favor" adaptive traits. Survival and reproduction may seem inherent values because they lead to continuity of the lineage. However, historical facts are distinct from values. Effects do not indicate intentions. Patterns of causation do not reflect processes of evaluation. A falling body does not reflect a value of gravity. Two charged particles do not reflect a value of electrical attraction. In the same way, reproduction and survival do not reflect a value of evolution. As exemplified in extinction, species do not "need" to be perpetuated. As exemplified in sterile insect castes and non-fertile individuals, single organisms do not "need" to reproduce themselves. The language of natural "selection" may easily mislead one to personify nature inappropriately. Recognizing such tendencies may be important in avoiding mistaken impressions.