The Brookfield Zoo welcomed a rare African antelope calf last month.
The male addax calf, born June 17, is named Chad, for one of the few African countries where addax are still found.
See a slideshow of all the baby animals at Chicago’s zoos
There has been some concern over his health; while Chad was a healthy 15 pounds, he was unable to stand and nurse from his mother, 8-year-old Martha. Zoo staff is hand-feeding him a special formula that is nutritionally similar to his mother’s milk.
While he grows and gets stronger, visitors can see Chad in one of the outdoor yards along 31st Street on the zoo’s northern edge. When he’s weaned off the bottle, which zoo staff says should be at about five months, he’ll be reintroduced to the herd at the zoo’s African habitat.