a living space for some types of animals, such as lions
The mother lion left her babies in the den.
The pride of lions rested in the shade of their den after a successful hunt.
The cubs playfully tumbled around near the entrance of the den while the lionesses kept a watchful eye.
The researchers set up cameras near the den to observe the behavior of the elusive wildlife.
The den, hidden among the rocks, provided a secure and sheltered space for the lion family.
