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Scientists Discover World's Oldest Colour - Bright Pink


Science & Tech  (tags: oldest biological colour, bright pink, molecular fossils, scientific discovery )

Farah
- 10 days ago - theguardian.com
Pigments found in 1.1bn-year-old rocks beneath the Sahara desert shed light on 'major puzzle' about early life



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Comments

Colleen L (3)
Tuesday July 10, 2018, 8:35 pm
Interesting. Thanks Farah
 

Animae C (516)
Tuesday July 10, 2018, 9:20 pm
Fascinating!

TY Farah
 

Peggy B (43)
Wednesday July 11, 2018, 7:23 am
TYFS
 

Janet B (0)
Wednesday July 11, 2018, 5:56 pm
Thanks
 

Kay M (347)
Wednesday July 11, 2018, 6:11 pm
cool.
 

S J (130)
Thursday July 12, 2018, 3:44 am
Meows Farah
 

Connie O (44)
Thursday July 12, 2018, 5:57 am
Cool! Thanks.
 

Roberto MARINI (90)
Thursday July 12, 2018, 9:07 am
noted, very interesting, thanks Farah
 

Michael F (183)
Thursday July 12, 2018, 10:53 am
Thank You for Sharing This !!!
 

Janet B (0)
Thursday July 12, 2018, 7:54 pm
Thanks
 

MmAway M (507)
Thursday July 12, 2018, 10:31 pm
Fascinating! Had to share a bit of your news at site since it wasn't posted here for those that rush through and it is GOOD!!! TY

"Brocks said when Gueneli, who is his student, had discovered the colours, he initially was in a state of disbelief.

“I remember I heard this screaming in the lab,” he said. “She came running into my office and said, ‘look at this,’ and she had this bright pink stuff.

“It turned out to be real pigment, 1.1bn years old.”

Brocks added that the discovery was “not just the coolness of having old, pink stuff”, but also helped to solve a “very major puzzle about life” – why large, complex creatures appeared so late in the Earth’s history.

While the Earth is about 4.6bn years old, Brocks said, animal-like creatures and other larger things like seaweed only emerged about 600m years ago.

When the researchers had analysed the structure of the pink molecule, they were able to find what had produced them – tiny cyanobacteria.
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“They had been at the bottom of the food chain,” he said. “In the modern ocean we have algae at the bottom of the food chain. Microscopic algae are still very small but they are still 1,000 times bigger than cyanobacteria.

“And you need these larger particles as a food source for larger creatures to evolve. Looking at our molecules it became clear … there was no food source for larger creatures. It solves a very old question.”
 

MmAway M (507)
Thursday July 12, 2018, 10:32 pm
BTW TY FARAH for posting! I adore to know more and be challenged!
 

Naomi D (43)
Friday July 13, 2018, 6:44 pm
From BEFORE animals existed. Wow!
 

Janet B (0)
Friday July 13, 2018, 7:17 pm
Thanks
 

Margie FOURIE (148)
Saturday July 14, 2018, 1:23 am
Thanks, i thought it would be purple or red.
 
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