Plants
From space dust to sapiens and beyond.
Featured Story
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Dawn of Humanity: Sapiens in Their First Millennia
Using fossils spread across Africa and beyond, this is the story of our first 1,000 years featuring our unique pioneering spirit.
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New Ideas
Ancient Humans
Holistic Paleolithic Framework: A New Look at Prehistory
A new look at dividing up the paleolithic era.
Updated
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1-Science
FAQ
Did red algae descend from green algae?
Plant Evolution
ANSWER: Red and green algae diverged 1.5 billion years ago, shaping marine ecosystems. Green algae later evolved into land plants around 475 million years ago, transforming Earth’s surface and atmosphere. Fun fact: blue-green algae aren’t algae—they’re photosynthetic bacteria!