I thought it was reported that it was a donkey bone.
the bone found by the diver and the bones on island that are donkey or an old bone are all different bones
"I thought it was reported that it was a donkey bone."
IIRC, there were actually two bones found. One being a donkey bone - the other a human bone, which was said to be a few years old. It would be interesting to know if ALE is investigating the human bone.
The human bone could belong to the man who disappeared from a walk on the beach in Aruba in 1999 or someone else. I get the feeling that Aruba's low crime rate is based on ignoring missing person's reports, or by throwing them in the trash.