This video summarises my understanding of the current genetic evidence on whether or not humans could have passed through a bottleneck of a single couple at some point in our history. It is a talk I gave in May 2020 for a group of scientists from across Europe who identify as Christians. This audience came… Continue reading Video: Adam, Eve and human genetic diversity
Here is a short video I made for one of my MSc classes, explaining why building phylogenetic trees is not easy. For examples of this phenomenon in my own research see here and here.
A paper published yesterday supports a hypothesis that Richard Nichols and I made in March 2020. We published an article in The Conversation arguing that we need to know if someone’s chances of severe COVID symptoms are affected by their genes. We suggested: “It may be that just one or two genes are involved. Perhaps… Continue reading A genetic basis for COVID susceptibility
This article, co-authored with my colleague Prof. Richard Nichols, was published at The Conversation on 17th March 2020. Since then, Science has published a news article about efforts to do the type of studies that we advocated. NB. This is not about testing to see if we have coronavirus – this is about testing how… Continue reading Could we predict personal coronavirus risk from our DNA?
That a single couple could be the ancestors of all living humans is widely seen as an area of conflict between genetics and the Abrahamic religions. Though little detailed attention has been paid to this idea in the scientific literature (see ‘Adam and Eve: a tested hypothesis?’), current models of the history of genomic variation in… Continue reading Adam and Eve our ghostly ancestors?
Mature elm trees in the English landscape are something I and many other have never seen. Dutch Elm Disease killed them all in the 1960s. Only the older generation can remember what we have lost. Browsing through some local photos from the 1930s this weekend, my eyes were opened to the size and grace of… Continue reading Lost elms of Kent
I recently participated in a discussion on the Biologos forum on the degree of similarity between the human and chimpanzee genomes. I was asked for my current view on this issue by Dennis Venema, who had found a old quote online from a newspaper article that I had written in 2008 on this issue. In… Continue reading How similar are human and chimpanzee genomes?
This blog was first posted at Nature Ecology & Evolution Community on 14 April 2018 Preliminary conclusions about the possibility of a short, sharp human bottleneck A few months ago I asked this community if modern genome science had tested an “Adam and Eve” hypothesis that the human lineage has passed through short, sharp bottleneck… Continue reading Adam and Eve: lessons learned
Here is the text of a comment I posted at The Skeptical Zone in response to comments by Joe Felsenstein, Steve Schaffner and John Harshman on my Nature Ecology and Evolution blog on human bottlenecks: Thank you all for interacting with my Nature Ecology and Evolution Community blog, and thanks to Vincent Torley for posting… Continue reading Responding to Felsenstein, Schaffner and Harshman at The Skeptical Zone
Does genomic evidence make it scientifically impossible that the human lineage could have ever passed through a population bottleneck of just two individuals? This is a question I am asked semi-frequently by religious friends. With my current understanding of the genetic evidence, I can’t state categorically that it’s impossible. In this view, I find I differ… Continue reading Adam and Eve: a tested hypothesis?