Life Learned To Breathe Oxygen Hundreds of Millions of Years Earlier Than Scientists Thought

Oxygen is everywhere on Earth today. But that hasn’t always been the case. Scientists think oxygen only became a lasting part ...
Science Daily

These 773,000-year-old fossils may reveal our shared human ancestor

Fossils from a Moroccan cave have been dated with remarkable accuracy to about 773,000 years ago, thanks to a magnetic ...
Scientific American

What were the first animals? The fierce sponge–jelly battle that just won’t end

For almost two decades, scientists have debated whether sponges or comb jellies are the first animal lineage. Now some are ...