Mother bears typically give birth in their hibernation dens, but those in milder regions may remain active during the winter -- as this bear family appeared to be.
Hibernating animals like bears, marmots, and hedgehogs were observed to see when they'd emerge from their dens.
During the shooting of the movie, leading actor Feng would play with the wolves, feed them and clean their dens.
Now, some luxury home owners are eliminating their dining rooms altogether, instead using the space for libraries, dens and 'living pavilions' -- in which dinner may sometimes be served.
" They saw male cephalopods guarding the dens of their mates for several days, warding off rivals and even strangling them if they got too close.
I was thankful when the morning light appeared, and when I judged by the silence that the serpents had retreated to their dens I came tremblingly out of my cave and wandered up and down the valley once more, kicking the diamonds contemptuously out of my path, for I felt that they were indeed vain things to a man in my situation.
