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The earliest fossils found are of stromatolites from around 3.5 billion years ago. Stromatolites are formed of bacteria that convert carbon dioxide, water and sunlight into calcium carbonate and oxygen.
Evidence from trapped bubbles of atmosphere in volcanic rocks shows that the atmosphere 3.5billion years ago was more like Venus today; largely carbon dioxide. Stromatolites thrived in this atmosphere. Ironically, their success caused a major crisis for early life as they removed most of the carbon dioxide from the atmosphere.
What else can I help you with?
Who was the first animal to live in earth?
unicellular animal.
Who is th first animal live in earth?
Dinosaurs was the first animals living on earth,but died years ago.
What is believed to be the first animal to live on earth?
A single celled organism.
How much is the first animal on the Earth?
the first animal on the earth is a Dinosaur's
What was the sixth animal to live on earth?
a gorilla
What is the first animal on earth?
bacteria
When did they launched the first animal into space?
in 1957 laika was the first animal to orbit the earth
What is another name for first animal?
First animal on the Earth was a jellyfish. See below-
What was the first animal to stand on earth?
It is impossible to know which was the first.
What was the first animal to live in the ocean?
Germs
What was the first animal to come to earth?
Lizards(dinosaurs)
What was the first animal to come to the earth?
Lizards(dinosaurs)
