Zoo officials say a 6-year-old eastern black rhinoceros at Atlanta's zoo is pregnant.
Zoo Atlanta said in a statement that Andazi has entered her birth window, which began Tuesday and runs through late November. Zoo officials say it's most likely she'll give birth in August or September.
The baby will be the first of its species ever born at Atlanta's zoo. Andazi weights more than 2,400 pounds. Officials say her calf will likely weigh between 55 and 90 pounds and will be born without horns.
The calf's father is Andazi's 8-year-old mate Utenzi.
Eastern black rhinos are critically endangered in the wild because of poaching for their horns and other body parts, which are believed to have healing properties in some cultures.