In “Interactive Plant Growing” five varieties of potted plants, such as fern and cactus, are placed in front of a screen. In response to visitors touching the plants, virtual plants are generated and grow luxuriantly in real time on the screen. The growth of the plants on the screen depends on delicate electronic transformations produced by the physical interaction of human and plant. Therefore, the reactions produced are not always the same. Because the state and feelings of both the human participants and the plants themselves will vary, a variety of results are produced. Using real plants as interface devices and the reactions of the plants to human actions as signals, this work introduces a new perspective on the concept of interactivity. In “A-Volve”, virtual organisms based on shapes drawn by visitors on a touch screen attached to a computer monitor, are projected in real time as 3D graphics in a pool of water. In the water, these virtual organisms react sensitively to the visitors’ actions and hand movements. While some organisms come together to give birth to new life, others struggle for their existence, and an artificially created life environment thematizing heredity and the laws of evolution and natural selection is produced. This work and presentation was the result of the artists’ collaboration with biologist Tom RAY during their three month stay at ATR Human Information Processing Research Laboratories in Kyoto, sponsored by ICC’s “Artist-in-Residence” program.