A Cincinnati Zoo & Botanical Garden worker’s thumb was partially amputated after a bonobo attacked during morning feeding Friday, the zoo said.

The employee has been stabilized at a hospital and was being treated, the zoo said in a statement Friday afternoon.

The bonobo bit through a protective mesh barrier as the primate care worker was giving food and medicine to the animals during morning rounds, the zoo said.

It wasn’t clear if the primate made contact with the worker or if the injury came…