This paper describes a speculative research-creation study intended to create a pedagogical tool to decenter the human in the practice of children’s architecture education. The research intertwines the reflection on Peñaloza Caicedo’s architectural-educational practices, speculative methodology, and a speculative research-creation event. We discuss how children living in Colombia and Australia performed this event, can experiment with living inquiries as the organic transformations of materials occurring without the children’s intervention. This can lead them to build spaces thinking-with the other-than-human agency, and spaces for different species to share bodies, houses, landscapes and universes. Architectures that might be possible for an equitable terrestrial future.