Havoc’s pups were growing up fast. When first they had emerged into the daylight they had been frightened of almost everything that moved and quick to retreat to the safety of the den as soon as they sensed anything unfamiliar was approaching.
One morning we watched as they peeped very cautiously over the edge of their den, staring towards the bright orb that gradually appeared over the rim of their world. As more of the sun appeared, the pups bobbed down, only to appear again as more and more light flooded the plains. The same evening, when some clouds had drifted slowly past the huge red globe of the setting sun, the pups stared with amazed looks and ducked back into their den. Soon a whole succession of small black heads reappeared, one after the other, still staring towards the clouds.
Hugo van Lawick, Solo: The Story of an African Wild Dog