We compared the performance of 3- and 5-year-old children with that of chimpanzees in two tasks requiring collaboration via complementary roles. In both tasks, children and chimpanzees were able to coordinate two complementary roles with peers and solve the problem cooperatively. This is the first experimental demonstration of the coordination of…

Parent-child conversations are a potential source of children's developing understanding of the biological domain. We investigated patterns in parent-child conversations that may inform children about biological domain boundaries. At a marine science center exhibit, we compared parent-child talk about typical sea animals with faces (fish) with…

Preschoolers' understanding that an object can be accurately described using two different non-synonymous words was investigated using a task in which children (N=36) had to judge which of two animals had provided correct adjectival labels for a series of pictures. For some pictures, only one animal provided a correct adjective, for some both…

Neurological research has demonstrated that brain activity in animals originally dedicated to the production and regulation of physical activity can be decoupled from that physical activity. Furthermore, animals can use the brain activity in this new condition to achieve particular results such as moving a cursor on a screen. These findings are…