The Museu de Ciències Naturals de Barcelona presents Invisible Animals: Myth, Life, Extinction, De-extinction, an exhibition exploring creatures that have vanished, exist only in our imagination, or are real but nearly impossible to see. With innovative museography, the exhibition merges science and art to shed light on often forgotten stories. A journey that invites reflection on biodiversity loss, cultural memory and the effort to preserve what is still unknown. A call to protect the planet and the beings—seen or unseen—that inhabit it.