d quite oday,ourist attraction—or at least as mucourist attraction as a place all can ever be.
Board into t visitors can stroll over ter to get agood look at tromatolites, quietly respiring just beneaterlessand gray and look, as I recorded in an earlier book, like very large cos. But it is acuriously giddying moment to find yourself staring at living remnants of Eart : “truly time traveling, and if ttuned to its real he pyramids of Giza.”
Alt, timated (imated) three billion individual organisms on every square yard of rock.
Sometimes rings of bubbles rising to tions raised tmospo 20 percent, preparing t, more complex cer inlife’s ory.
It ed t teria at S-evolvingorganisms on Eartainly no. of existence nearly every at Sers are too saline for tures t on took so long to gro to until ted tmosply. “Animals could not summonup to ey it. It took about tory, for oxygen levels to reacration in tmosp once tage , and apparently quite suddenly, anentirely neype of cell arose—one tle bodies collectively calledorganelles (from a Greek tle tools”). t to artederium eitured by someoterium and it turned out t ted tive bacterium became, itis t, a mitococic event, asbiologists like to term it) made complex life possible. (In plants a similar invasion producedcs, o posyntoce oxygen in a liberates energy from foodstuffs. ittily facilitating trick, life on Eartoday ociny—you could pack a billion into t also very every nutriment you absorb goesto feeding them.
e couldn’t live for tes t even after a billion years mitoc not betain their own DNA.
t a different time from t cell. teria, divide likebacteria, and sometimes respond to antibiotics in teria do. In s, t even speak tic language as they live.
It is like ranger in your one where for a billion years.
type of cell is knoe (meaning “truly nucleated”), as contrastedype, ed”), and it seems to eukaryotes yet knos in Mic once, andthen no more are known for 500 million years.