The long history of life on Earth has unfolded as a cause-and-effect relationship with the
evolving amount of oxygen (O2) in the oceans and atmosphere. Oxygen deficiency …

The early to mid-Paleoproterozoic Lomagundi-Jatuli Excursion (LJE) is ostensibly the
largest magnitude (approximately+ 5 to+ 30‰), longest duration (ca. 130–250 million years) …

Practical experiments drive important scientific discoveries in biology, but theory‐based
research studies also contribute novel—sometimes paradigm‐changing—findings. Here, we …

The largest negative inorganic carbon isotope excursion in Earth's history, namely the
Ediacaran Shuram Excursion (SE), closely followed by early animal radiation, has been …

The rate of primary productivity is a keystone variable in driving biogeochemical cycles
today and has been throughout Earth's past. 1 For example, it plays a critical role in …

Oxygen is toxic across all three domains of life. Yet, the underlying molecular mechanisms
remain largely unknown. Here, we systematically investigate the major cellular pathways …

Iron is an irreplaceable component of proteins and enzyme systems required for life. This
need for iron is a well-characterized evolutionary mechanism for genetic selection. However …

Understanding the timing and trajectory of atmospheric oxygenation remains fundamental to
deciphering its causes and consequences. Given its origin in oxygen-free photochemistry …

The large-scale dynamics of ocean oxygenation have changed dramatically throughout
Earth's history, in step with major changes in the abundance of O2 in the atmosphere and …

The Paleoproterozoic Lomagundi–Jatuli Event (LJE) is generally considered the largest, in
both amplitude and duration, positive carbonate C-isotope (δ 13Ccarb) excursion in Earth …