[Neanderthal]

"Kondraros said his uncle was out hunting with his dog in the late 1950s, when the dog took off in pursuit of a fox and darted into a small hole.

“After two hours or so, the dog never came out,” Kondraros said. He said his uncle widened the hole and ventured inside. That hole, he said, was the opening to Alepotrypa Cave.

So what happened to the dog?

[SunkenCiv]

The fox led the way out a different hole, and the dog is still chasing it.