Friday Squid Blogging: Squid Ink from the Jurassic
Seems that squid ink hasn't changed much in 160 million years. From this, researchers argue that the security mechanism of spraying ink into the water and escaping is also that old.
Simon and his colleagues used a combination of direct, high-resolution chemical techniques to determine that the melanin had been preserved. The researchers also compared the chemical composition of the ancient squid ink remains to that of modern squid ink from Sepia officinalis, a squid common to the Mediterranean, North and Baltic seas.
"It's close enough that I would argue that the pigmentation in this class of animals has not evolved in 160 million years," Simon said. "The whole machinery apparently has been locked in time and passed down through succeeding generations of squid. It's a very optimized system for this animal and has been optimized for a long time."
As usual, you can also use this squid post to talk about the security stories in the news that I haven't covered.
Posted on May 25, 2012 at 4:01 PM • 47 Comments