Children have long been marginalized in ethnoecological research on traditional ecological knowledge (TEK) and representations of nature. Few tools or resources exist to address the children's world in ethnoecology. Nonetheless, many questions and themes, especially around the production and transmission of TEK, concern children. Children build their own traditions and skills, which shape both their own cultural productions and those of adults. Children’s TEK consequently should be considered alongside that of adults in ethnoecological research. Children are both producers and repositories of ecological knowledge and societal values. They mobilize these in an autonomous manner to interact with their environment in order to improve their living conditions, conduct experiments, and adjust to a changing world. Based mainly on fieldwork conducted in Gabon and Madagascar, this paper aims to reconsider children’s TEK and analyse and discuss the practical and heuristic interest of a new tool in ethnoecology: children’s drawings.