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PLANT EVOLUTION
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Updated This Week
History
Story
~3.72 Billion Years Ago (after prokaryotes)
Touch: Life Learns to Feel Force
Mechanical sensitivity to pressure and membrane stretch
- Touch evolved long before brains.
Evolution
By 3.72 billion years ago, before vision, before smell, before hearing — life learned to feel force. Plants, fungi, and animals all inherited this ancient cellular technology. In animals it became advanced and neural, but its roots lie in the physics of membranes and pressure itself.
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Science
FAQ
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.
Plant Evolution
From Photosynthesis to Forests
The greening of the planet.
Plant evolution charts the rise of photosynthetic life that reshaped Earth’s atmosphere and made complex ecosystems possible. From early algae to forests and flowering plants, plants transformed climate, soil, and food webs. Understanding plant evolution reveals how life altered the planet long before humans appeared.
