The idea that random genetic mutations lead to wondrous, creative innovations is so influential that it forms the premise of a movie franchise, X-Men, that has grossed $6 billion.
Researchers at Uppsala University describe the challenge they face — and that standard Darwinian processes had to face.
Instead of relying on their textbooks, students are learning about evolution by watching bacteria grow and change.
We looked at some papers claiming to see evolution happening in real time, to see if natural selection has actually invented a new function, or just broke an existing function.
Professor Lenski revisits a series of experiments on the bacteriophage lambda begun by his lab around 2012.