Two-phase increase in the maximum size of life over 3.5 billion years reflects biological innovation and environmental opportunity.
Proc Natl Acad Sci U S A. 2009 Jan 6; 106(1):24-7
Payne JL, Boyer AG, Brown JH, Finnegan S, ..., Novack-Gottshall PM, Smith FA, Stempien JA, Wang SC. Payne JL, Boyer AG, Brown JH, Finnegan S, Kowalewski M, Krause RA, Lyons SK, McClain CR, McShea DW, Novack-Gottshall PM, Smith FA, Stempien JA, Wang SC. Proc Natl Acad Sci U S A. 2009 Jan 6; 106(1):24-7
Although it is obvious that the maximum size of organisms has increased since the origin of life, the pattern of this increase had not been clear until this new study, which shows the increases occurred largely in two bursts, about 1.9 and 0.5-0.45 billion years ago, coincident with increases in oxygen levels.
This study strongly...
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