evolutionary theory
Should we be surprised if Neandertals, Denisovans, and modern humans didn’t form stable hybrid zones?
A geneticist asks why we don't see more persisting hybrid populations, and I find an answer in the theory of population source-sink dynamics.
![A Neandertal artist's reconstruction at the Neanderthal Museum, wearing a suit and holding a stone tool.](/content/images/size/w1460/2022/01/neander-clooney-mettmann-2014.jpg)
Why do some invasive species start to succeed only after a delay?
Reviewing a body of evolutionary theory that tries to understand the ultimate success of some invasions after a lag.
Did Neandertals evolve in a population sink?
The dynamics of adaptation in shrinking populations may help understand how many ancient populations evolved.
The legend of Henry Ford's kingpins in evolutionary biology
Looking critically at a story used to illustrate the process of natural selection.