The other mammoths were as protective of the dying as they were of newborns, and they gathered around tying to make the fallen one get up. When all was over, they buried the dead ancestor under piles of dirt, grass, leaves, or snow. Mammoths were even known to bury other dead animals, including humans.
The Plains of Passage (ed. Hachette UK, 2010) - ISBN: 9781444713114