A foot bridge, a feline house, and a new bear den were constructed.

The remains of bears can also be seen inside the caves and allusions have been made to it being the last bear den in Ireland.

He knew, because he now had fleas, that the cave had once been a bear den.

They may also den in abandoned brown bear dens.

The name Bardon is derived from "bear den"; it is said that the last bear in England was killed here.

The keeper of the bear den rumbles out of the zoo in his aging Toyota.

Once inside the cave, there is a lengthy tunnel with an extremely low ceiling with old bear dens throughout.

Starting the following year, old bear dens within the cave were explored and numerous animal bones began to be found.

The structure of his own home incorporated a natural cave in the hillside, and was designed to be as much bear den as man house.

Even with the Great Depression of the 1930s, the zoo prospered, creating a bear den that resembled bears' natural habitat.