This exhibit is located behind the Tree of Life near the Galapagos tortoises, and was empty on both my most recent visits (Jan. 5th & 7th, 2022). All I know based on a left over sign is that the animal is from Southern Africa.
@Ituri I second that. A family of porcupines were here in 2019, and a cast member explained that the porcupines were taken off exhibit because of the noisy boat parades that come through on the nearby Discovery River.