Yes, microorganisms have been building not only pyramids for countless billions of years, but many other various shaped structures as well. Psssst... highly advanced civilizations are building pyramids thruout the planets and/or their moons in our star system, because, they're trying to make everyone on earth think the egyptians have long since made tremendous progress with their technology.... you know, the kind that levitates giant stones via a secret antigravity device. Pyramids are really just natural odd or rare rock formations odd or rare that become exposed over time as the wind blows away the surrounding dirt or dust.
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