A finger of purple bacteria sticks up from the bottom of a lakebed
Longer Days Led to Oxygen Buildup on Early Earth: Study
Researchers propose that some of the planet’s earliest photosynthesizers benefited from a slowing of the Earth’s rotation that allowed them to produce a surplus of oxygen and paved the way for more complex life.  
Longer Days Led to Oxygen Buildup on Early Earth: Study
Longer Days Led to Oxygen Buildup on Early Earth: Study

Researchers propose that some of the planet’s earliest photosynthesizers benefited from a slowing of the Earth’s rotation that allowed them to produce a surplus of oxygen and paved the way for more complex life.  

Researchers propose that some of the planet’s earliest photosynthesizers benefited from a slowing of the Earth’s rotation that allowed them to produce a surplus of oxygen and paved the way for more complex life.  

oxygen consumption
bar-headed geese fly over the Himalayas
Bar-Headed Geese Slow Their Metabolism to Soar over Everest
Nicoletta Lanese | Sep 4, 2019
The birds also decrease their heart rate and chill their blood to maintain flight in hypoxic conditions.
Brains in Action
Anna Azvolinsky | Nov 1, 2014
An inspiring lecturer turned Marcus Raichle’s focus from music and history to science. Since then, he has pioneered the use of imaging to study how our brains function.