Mbh 7.14.1b

And lances constituted the fish with which it abounded. And it was inaccessible in consequence of the large number of (slain) men, elephants, and steeds (that fell in it). And the impetus of the shaft shot constituted its current. And the slain bodies themselves constituted the timber floating on it. And cars constituted its tortoises. And heads constituted the stones scattered on its banks and bed, and scimitars, its fish in profusion. And cars and elephants formed its lakes. And it was decked with many adornments. And mighty car-warriors constituted its hundreds of little whirlpools. And the dust of the earth constituted its wavelets. And capable of being easily crossed by those possessed of exceeding energy, it was incapable of being crossed by the timid. And heaps of dead bodies constituted the sand-banks obstructing its navigation. And it was the haunt of Kankas and vultures and other birds of prey. And it carried away thousands of mighty-car-warriors to the abode of Yama. And long spears constituted the snakes that infested it in profusion. And the living combatants constituted the fowls sporting on its waters.[25] Torn umbrellas constituted its large swans. Diadems formed the (smaller) birds that adorned it. Wheels constituted its turtles, and maces its alligators, and arrows its smaller fish. And it was the resort of frightful swarms of crows and vultures and jackals. And that river, O best of kings, bore away in hundreds, to the region of the Pitris, the creatures that were slain by Drona in battle. Obstructed by hundreds of bodies (floating on it), the hair (of slain warriors and animals) constituted its moss and weeds. Even such was the river, enhancing the fears of the timid, that Drona caused to flow there.[26]