The Paris-born, New York–based artist Camille Henrot previews her upcoming first-ever performance-art piece, slated to premiere in 2026 and a collaboration with the nonprofit Performa; explores her fraught fascination with animals, childhood, and the climate crisis—the intersection of which she examines in-depth in her her soon-to-debut film “In the Veins”; and reflects on why, for her, a work is technically never finished.