Plants
From space dust to sapiens and beyond.
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The Evolution of Vocabulary in Ancient Humans
The evolution of language is the evolution of communication. From touch which evolved about 800 million years ago to human words. Along the journey, communication ...
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.
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Did red algae descend from green algae?
Red algae did not descend from green algae. Both lineages split from a shared ancestor about 1.5 billion years ago, then adapted independently to different light environments.
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Did red algae descend from green algae?
Plant Evolution
Red and green algae diverged about 1.5 billion years ago, shaping marine ecosystems. Green algae later gave rise to land plants around 475 million years ago, transforming Earth’s surface and atmosphere. Fun fact: blue-green algae aren’t algae at all. They’re photosynthetic bacteria that emerged much earlier, around 2.7 billion years ago.