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Evolution ppt

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Evolution of life on Earth 4,500 million years of evolution
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Evolution of life on EarthEvolution of life on Earth

4,500 million years of evolution 4,500 million years of evolution

Evolution of life on EarthEvolution of life on Earth

Earth takes shape

Earth takes shape

Earth today

4,500 million years

Earth today

4,500 million years

Evolution of life on Earth as a 24 hour clock

00:00 12:00 24:0006:00 18:00

Evolution of life on EarthEvolution of life on Earth

Evolution of life on Earth as a 24 hour clock

00:00 12:00 24:0006:00 18:00

1 hour = 187.5 million years1 hour = 187.5 million years

1 min = 3.125 million years1 min = 3.125 million years

1 sec = 52 thousand years1 sec = 52 thousand years

24 hours = 4,500 million years24 hours = 4,500 million years

Evolution of life on Earth

00:00 12:00 24:0006:00 18:00

4am – First life Single cell microbes

8.30pm – First plants appear in sea

Evolution of life on Earth

20:00 22:00 24:0021:00 23:00

8.30pm – First plants appear in sea

8.50pm – First Ediacaran fauna and jellyfish appear in sea

Evolution of life on Earth

20:00 22:00 24:0021:00 23:00

9.04pm – Trilobites appear

Evolution of life on Earth

20:00 22:00 24:0021:00 23:00

9.55pm – First land plants appear

Evolution of life on Earth

20:00 22:00 24:0021:00 23:00

10.05pm – First land creatures appear

Evolution of life on Earth

20:00 22:00 24:0021:00 23:00

10.24pm – land covered by trees – first winged insects appear

Evolution of life on Earth

20:00 22:00 24:0021:00 23:00

10.55pm – Dinosaurs appear

Evolution of life on Earth

23:00 23:30 24:0023:15 23:45

10.55pm Dinosaurs appear

11.39pm – Dinosaurs disappear – mammals start to appear

11.42pm – Primates start to appear

Evolution of life on Earth

23:56 23:58 24:0023:57 23:59

23:58:43

Hominids species appears

23:59:18

Homo habilis species appears

23:59:57

Homo Sapiens Sapiens species appears

Evolution of life on Earth

00:00 12:00 24:0006:00 18:00

4am – First life Single cell microbes

8.30pm – First plants appear in sea

Evolution of life on Earth

00:00 12:00 24:0006:00 18:00

10.05pm – First land creatures appear

10.55pm Dinosaurs appear

Evolution of life on Earth

00:00 12:00 24:0006:00 18:00

11.39pm – mammals start to appear23:59:57

Homo sapiens sapiens species appears

Evolution of life on Earth

Presentation written by Andrew Trimble with reference to:

“A Short History of Everything” by Bill Bryson


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