This large Horse to the right and lower than the Ibex shows well the erect mane, the plentiful hair on the rest of the body, the line of the back and the swell of the abdomen of this animal of the plains.
It should be realised that Ibex were one of the few species of hunted animals in the Vicdessos valley in which Niaux sits, and the reason for the presence of the artists.
The Horse and Bison are animals of the plains, and were hunted by the artists in the summer when they left the valley, where they lived in the Grotte de la Vache just across the Vicdessos valley, a few hundred metres from Niaux, in winter, and went to the plains for the summer to hunt, returning to Grotte de la Vache (and Niaux) at the start of the next winter.
They did not live in Niaux, it was used only as an art studio and gallery. Grotte de la Vache is smaller, though with more than adequate space for a hunting band, with a much lower ceiling, well lit, dry, and close to the large, wide valley floor where the ibex congregated, eating the grass not available on the peaks in winter.