Archaea

Mr. Andersen discusses Archaea bacteria, initially thought to inhabit only extreme environments like Yellowstone's hot pots and the Great Salt Lake. However, they are found everywhere, including oceans and human guts. Archaea are more closely related to eukaryotes than bacteria, despite being prokaryotic. They lack a nucleus and organelles but have a unique cell wall structure. Methanogens, a type of Archaea, produce methane in environments like cow guts. Archaea are versatile, living in diverse environments, and share more similarities with eukaryotes than previously thought.

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