Two endangered addax antelopes were born at the Brookfield Zoo in Illinois and two more calves are on their way in the coming weeks.
One calf was born June 7 and the second was born June 22 weighing in at 19 pounds. The addax antelope, native to Africa's Sahara deserts, is on the brink of extinction, with only 300 living in the wild, WLS-TV, Chicago reported.