An aging cougar was captured Tuesday near the mouth of Millcreek Canyon.

Wildlife officers killed the female cat by lethal injection after determining she could no longer survive in nature, said Lt. Scott White of the state Division of Wildlife Resources.

“They’re like us: At some point they just can’t function anymore,” White said. “We euthanized her humanely.”

The cougar was spotted early Tuesday lying in some weeds near 3800 South and 3800 East, White said.

Sightings of a limping, struggling cougar had been reported in recent weeks in and around Olympus Cove, White said.

“The condition she was in leads me to believe that it was the same one,” White said.

The cat was “basically nothing but skin and bones,” weighing between 30 and 40 pounds — about half what a healthy adult female normally weighs, White said.

Her teeth were worn down to half-inch nubs, he said; cougar fangs typically are about an inch and a half.

“Once they get this old ... they can’t catch their natural prey, so they come down to [residential] areas to eat cat food, dog food, stuff left out on porches,” White said.