What: Male addax calf, a rare type of African antelope, named Chad, after one of the few African nations where addax are still found.
Born: June 17, 2010.
Where to see: As he grows and gets stronger, Chad can be seen in one of the outdoor yards along 31st Street. When he is around five months old, zoo staff say he will be ready to reunite with the rest of the herd, which includes his mother, Martha; Tina, 8; and Aretha, 17.
The Brookfield Zoo is open daily 9:30 a.m.-6 p.m. (7:30 p.m Sundays)