1. Evolution of life on EarthEvolution of life on Earth
4,500 million years of evolution
2. Evolution of life on EarthEvolution of life on Earth
Earth takes shapeEarth 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
3. 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
4. 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
5. 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
6. Evolution of life on Earth
20:00 22:00 24:0021:00 23:00
9.04pm – Trilobites
appear
7. Evolution of life on Earth
20:00 22:00 24:0021:00 23:00
9.55pm – First land
plants appear
8. Evolution of life on Earth
20:00 22:00 24:0021:00 23:00
10.05pm – First land
creatures appear
9. Evolution of life on Earth
20:00 22:00 24:0021:00 23:00
10.24pm – land covered by trees
– first winged insects appear
10. Evolution of life on Earth
20:00 22:00 24:0021:00 23:00
10.55pm – Dinosaurs
appear
11. 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
12. 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
13. 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
14. Evolution of life on Earth
00:00 12:00 24:0006:00 18:00
10.05pm – First land
creatures appear
10.55pm Dinosaurs
appear
15. Evolution of life on Earth
00:00 12:00 24:0006:00 18:00
11.39pm – mammals
start to appear
23:59:57
Homo sapiens sapiens
species appears
16. Evolution of life on Earth
Presentation written by
Andrew Trimble with
reference to:
“A Short History of
Everything” by Bill
Bryson
