How molecular clocks are refining human evolution’s timeline -Analyzing DNA from present-day and ancient genomes provides a complementary approach for dating evolutionary events. Because certain genetic changes occur at a steady rate per generation, they provide an estimate of the time elapsed. These changes accrue like the ticks on a stopwatch, providing a “molecular clock.” Go here to read more from The Conversation.
Maria Watkins was a very active Liveryman in the 1980-90’s and a keen supporter of Apprentices. She died in 2010 and you might like to read the following written about her in 2019 under the heading Magnificent Women (in Engineering). She also features on Wikipedia as herself and on the page for History of Women in Engineering.
https://www.magnificentwomen.co.uk/engineer-of-the-week/82-maria-watkins