There are a number of additional interesting anomalies about the moai.

Interesting facts about the Moai statues.

All but 53 of the 887 moai statues known to date were carved from tuff (a compressed volcanic ash). There are also 13 moai carved from basalt, 22 from trachyte and 17 from fragile red scoria.

On the surface this isn't that interesting. The interested part is that there aren't any known basalt quarry's above sea level in Easter Island.

French diver Jacques Cousteau referred to a carved under water basalt quarry that he couldn't explain. (I couldn't find a link.) The implication being that the basalt Moai were carved from an ice age-era quarry when the sea level we're much lower, and thus the materials were accessable.

However, I did find s link to a different source that makes the same claim and more...

The Mysteries of Easter Island. Page 4:

Even on our preliminary reconnaissance trip Schoch found evidence that the earliest moai may have differed materially from the later moai. The earliest moai appear to have been more finely worked from harder basalts, compared to the volcanic tuffs of most moai, which date to later periods. The few surviving basalt moai have been found at deeper stratigraphic levels below other moai and the platforms upon which they were erected, or were reused in later structures—thus indicating the basalt moai are among the earliest on the island. Furthermore, at least one of the basalt moai (now housed in the museum on Easter Island) is of a very strange form; with an elongated head and well-defined breasts it is often considered a female while virtually all other moai are apparently males.
Another major puzzle, which is directly applicable to the chronology and dating of the moai, is the matter of where various moai were quarried. Quarries on the rim of the volcanic crater, where large moai were carved from the volcanic tuffs, are well exposed and still contain partially carved moai in place. We inspected these quarries carefully. However, the quarries where the few basalt moai were carved have never been definitively located, despite the small size of the island. Based on the geology of Easter Island, Schoch expects that any suitable basalt deposits would occur lower in the stratigraphic section, so low in fact that they might currently be under sea level off the coast of the island. That is, the basalt quarries might be under water. How could this be? It is difficult to conceive that the ancient Easter Islanders were quarrying rock below sea level. Alternatively, Schoch hypothesizes, the “lost basalt quarries” might be under sea level now because they are of extreme antiquity, and thus the basalt moai carved from them are extremely ancient. Sea levels have risen dramatically since the end of the last ice age, some ten thousand or more years ago, and if the basalt moai were quarried along the coast of Easter Island from areas since inundated by the sea, this could help to date the basalt moai, and is immediately suggestive that they are thousands of years older than conventionally believed to be the case.

Rongo rongo could be a global text or art form from iceage era civilizations.

Mnemonic pointed out that wikipedia is years behind on the Moai bodies, and that should have been easy as they have Moai with bodies in museums already.

Anyone care to guess how long it will be until mainstream archeology recognizes that human civilization likely goes back into the ice age??? 13,000 years, or more...

Or it could be bullshit. I doubt it, though.