The milu—a rare Chinese deer that survived extinction only because a small number reached European zoos—has no unmediated wilderness to return to. It now rests amid wind farm towers and wanders into farmland. Feral Sediment, Yining Fei's New York debut at SculptureCenter, treats the milu as a vessel for imagining ecological futures, constructing its interior organs in ceramic as a cosmos in miniature, where the biological and the artificial, the intimate and the planetary, converge.