How do children reason about the natural world? How do they understand the relation between human and non-human animals? For decades, the consensus¹（一致，舆论） was that as young children begin reasoning about the biological world, they adopt an "anthropocentric（以人类为中心的） " stance, favoring humans over non-human animals when it comes to learning about properties of animals.

But Northwestern University researchers have taken another look at the way children reason about biology.

Research by Douglas Medin, Sandra Waxman and Jennie Woodring in the psychology² department in the Weinberg College of Arts and Sciences and Karen Washinawatok of the Menominee Language and Culture Commission reveals that this style of human-centered reasoning is not universal.

In a study, which appeared May 1 in the journal Cognitive³ Development, the Northwestern researchers teamed up with researchers and educators from the Menominee Nation in Wisconsin to determine whether this human-centered (or anthropocentric) reasoning is universal. They were interested in whether such reasoning is influenced by children's experience with the natural world and the culture and belief systems of their communities.

To examine these potential influences, the study included children growing up in an urban setting (Chicago) as well as children from rural Wisconsin, who have more extensive direct contact with the natural world. To examine the influence of culture, the rural community included European-American and Native American (Menominee) children.

The results were striking -- while young urban children revealed a human-centered pattern of reasoning, the rural European-American and Native American children did not. Children's experience, including the extent of their day-to-day interactions with the natural world and their sensitivity to the belief systems of their communities, influences their reasoning about the natural world.

For example, the researchers noted⁴ that while children generally are taught in school that only plants and animals are alive, the traditional Menominee notion of "alive" includes natural inanimates（无生命的） , such as rocks and water, and may even include artifacts（史前古器物，人工产品） , depending on the purpose for which they were made.

Such cultural differences provide strong evidence that the human-centered pattern displayed by young urban children is not a universal starting point for development, as researchers and educators had previously⁵ assumed, said Waxman, a co-author and professor of psychology.

"Instead, this human-centered style of reasoning is itself culturally inflected," said Waxman. "It may, in fact, reflect a cultural model that is prevalent（流行的，普遍的） in the media for young children, for example, stories and films in which animals talk, sing and act like humans."