Posts Tagged ‘Richard Lenski’

Longest Evolution Experiment Dead-End


Longest Evolution Experiment Dead-End

The industry’s longest-running research experiment reached a milestone in October studying the evolution of more than 68,000 generations. Biologist Richard Lenski started the now legendary experiment in his laboratory early in 1988 with just 12 flasks seeded with genetically identical bacteria known as Escherichia coli (E. coli). The bacteria have since been growing in a carefully measured solution of glucose, a type of sugar – “food” for bacteria.

Each flask contained just a sparse amount of glucose to create a stressful environment along with a high concentration of citrate, a molecular close cousin of glucose, pushing the bacteria to evolve. Every day, since 1988, Lenski’s laboratory team has transferred a small sample into new 50 mL Erlenmeyer flasks. Although wanting to quit this laborious experiment many times, Lenski has continued this process non-stop for over 30 years – now recognized as the industry’s longest evolution experiment dead-end.

Continue Reading

Book Description



Buy Now

Kindle Edition Available





Darwin, Then and Now is a journey through the most amazing story in the history of science - the history of evolution. The book encapsulates who Darwin was, what he said, and what scientists have discovered since the publication of The Origin of Species in 1859.

With over 1,000 references, Darwin Then and Now is a historical chronicle of the rise and fall of the once popular theory of biological evolution.

Connect