The recent discovery of Ice Age infants in Alaska reveals the primitive parents buried their children with great care — even 11,500 years ago.

Archaeologists discovered the skeletons in 2013 in rural Alaska, The burial site contained two infants who died during the Ice Age and were likely children of some of North America’s earliest settlers, according to Newsweek, which quoted findings published in the Proceedings of the National Academy of Sciences.

University of Alaska archaeologist Ben Potter led the team in exploring the ancient gravesite, which was located near the Tanana River in central Alaska.

The infant remains were found just over a foot below a spot where researchers found the cremated remains of a 3-year-old child back in 2010 — but it was what scientists found around the site that provides insight into how adults grieved their dead children.

Since archaeologists found the remains of small animals, the site where the remains were found indicate it was probably the hearth where cooking was done, suggesting that the children were laid to rest within the heart of the home, perhaps on the very fire that cooked their meals.

Scientists also found stone points arranged neatly in the vicinity, along with decoratively carved antlers and other adornments, suggesting that even though primitive humans had no written language, they treated their dead with the same level of care that we do today.

The children likely died in the summer months when food was most abundant based on the amount of animal remains found at the site, so the cause of death was likely due to the fact that infant mortality during the Ice Age was very high.