The fourth edition of “ECOSS: Ecosystems of the Unexpected” opens at Santa Mònica Arts Center, Barcelona, pondering “how much of what we consider nature is in fact a simulation.” Featuring inter-species installations by Nathalie Gebert, Paula Bruna, Anna Rierola, María Castellanos & Uh513 Collective (image: Beyond Human Perception, 2020), the show takes visitors through seeded topographies, microscopy of cellular self-regulation mechanisms, and prosthetic objects that communicate with and care for plants.