The Erie Zoo is trying to figure out why a rare Amur leopard attacked and killed another leopard today.
This afternoon, 5-year-old male leopard Edgar attacked and killed 7-year-old female leopard Lina.
According to Erie Zoo President Scott Mitchell, zoo employees were attempting to breed the rare cats, when Edgar snapped and mauled Lina.
Zoo workers were on hand at the time of the attack, and they attempted to save Lina, but she was gravely injured.
Mitchell is calling this a horrible incident that has left his staff devastated.
"For us, it's huge emotionally, because we've never had this happen before, in the 30 plus years I've been here," said Mitchell. "For the species, it's even bigger because this may be one of the most endangered cats on earth, and to lose an important breeding female, like this, is just devastating."
As of now, it is unclear what they will do with Edgar or if they plan on bringing in another female leopard for breeding.