Comments by "Iain Mc" (@iainmc9859) on "2 new Paleo-American sites" video.

  1. Agate's a metamorphic semi-precious gemstones usually washed out from any previously volcanic area, which means it can turn up pretty much anywhere. Its also very varied in colour even within a local area, every colour of the rainbow. Defining what exactly Agate is by chemical composition is, well ... just as variable, as different parts of the world call it by different general names.
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  2. There are borers in marine environments that make exactly those type of holes in molluscs, moon snails and dog whelks are the obvious candidates, however that's hundreds of miles from the site. Some freshwater fish are also raspers, but they generally eat algae. You've also got the perennial possibility of water action, either dripping or flowing around a static shell with grains of sand caught in it. Personally I'd be more likely to go with a snail smart enough to know there was food inside a washed up shell. How did all the other shells get there if it wasn't a midden, presumably some natural event ? You've an interesting hypothesis that 'Humans aren't the only people that can break rocks', I'm going to go out on a limb here and say, Yes humans are the only 'people' that can break rocks, presuming that our other primate relatives, chimps, bonobos, past and present, don't quite count as people, or crows, or clumsy elephants, or earthquakes etc etc 😉
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