Critically endangered addax dies at Smithsonian’s National Zoo

Terri the addax rests behind the scenes at the Africa Trail exhibit on Feb. 1, 2023. (Courtesy Gil Myers/Smithsonian's National Zoo and Conservation Biology Institute)
A 2-year-old female addax named Terri has died at Smithsonian’s National Zoo in D.C.

The addax was found dead June 12 near a fence that separates the addax and ostrich habitats. Necropsy reports showed evidence of a cervical fracture, which the zoo said indicates something may have spooked Terri and caused her to run and collide with the fence.

Terri and her two herd mates, Jack and Janet, arrived at the zoo in November of 2021. Their species is native to the African countries of Chad and Niger and is considered critically endangered in the wild.

The zoo said the life span of an addax is unknown in the wild, but in human care, males have lived up to 11 years and females have lived up to 14 years.

Thomas Robertson

Thomas Robertson is an Associate Producer and Web Writer/Editor at WTOP. After graduating in 2019 from James Madison University, Thomas moved away from Virginia for the first time in his life to cover the local government beat for a small daily newspaper in Zanesville, Ohio.

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