"At a conference in Cairns, Australia, a scientist member of the American Rock Art Research Association claimed that prehistoric cave-painting sites were chosen by the artists for their reverberant acoustic character. Steven Waller speculated that each painting site reveals a correspondence between the animals depicted on the walls and the nature of any sound activating the echoes in that space. In caves such as Lascaux, where large animals were painted, the echoes are overwhelmingly loud, whereas in sites where felines adorn the walls, the decibel level of the reverberations is very low."
New Scientist, qt'd in Ocean of Sound (3)